Subscription Growth Resources

Insights from the Nami ML team on the app economy including on subscription-based apps, app growth and building better paywalls.

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Error 2020 - App Not Available in Your Country: Causes and Solutions

November 13, 2024

Fixing Error 2020 on Apple App Store

Error 2020, known as "App Not Available in Your Country," is a common issue on the Apple App Store that prevents users from accessing apps due to geo-restrictions. This error occurs when an app is not configured for availability in the user’s region, often due to settings in App Store Connect or regional restrictions. Addressing Error 2020 involves configuring the app’s availability settings to align with your target markets.

SKErrorDomain Code=4 - Payment Not Allowed on App Store: Causes and Solutions

November 12, 2024

Fixing SKErrorDomain Code=4 on Apple App Store

Error Code 4, also known as SKErrorDomain Code=4 - Payment Not Allowed, appears when a device or user account has payment restrictions preventing in-app purchases. This error typically occurs on devices with parental controls or on accounts that lack permissions for purchases. By handling this error effectively, developers can improve user experience and guide users on how to enable payment capabilities.

November 10, 2024

Resolving Error ITMS-90161 on Apple App Store

Error ITMS-90161, also known as Invalid Provisioning Profile, is a common issue that arises during app submission to the Apple App Store. This error typically indicates that the provisioning profile associated with the app binary is incorrect, outdated, or improperly configured. Correcting this error is essential to ensure smooth submission and compliance with Apple’s requirements.

Error ITMS-9000 - Invalid Binary on App Store

November 9, 2024

Fixing Error ITMS-9000 on Apple App Store

Error ITMS-9000, also known as Invalid Binary, is an Apple App Store error that developers often encounter during the submission process. This error signifies that the binary submitted does not meet the necessary requirements for distribution on the App Store. Resolving Error ITMS-9000 involves identifying the configuration issues in Xcode, provisioning profiles, or project settings to ensure the binary meets Apple’s standards.

micro-interactions in subscription UX

November 8, 2024

The Power of Micro-Interactions in Subscription UX: Small Touches, Big Impact

Boost your subscription business with the power of micro-interactions. Learn how to improve user experience, increase conversions, and reduce churn through thoughtful design.

SKErrorDomain Code=3 - Payment Invalid on App Store

November 8, 2024

SKErrorDomain Code=3 on Apple App Store

Error Code 3, also known as SKErrorDomain Code=3 - Payment Invalid, is an Apple App Store error indicating issues with payment information. This error typically appears when users attempt an in-app purchase with an invalid payment method, often due to outdated card details, or restrictions on the test account in sandbox environments. Ensuring proper setup and payment validation is crucial for a smooth purchase experience.

SKErrorDomain Code=2 - Cancelled on App Store: Causes and Fixes

November 7, 2024

Handling SKErrorDomain Code=2 on Apple App Store

Error Code 2, also known as SKErrorDomain Code=2 - Cancelled, is a common error that occurs when users cancel the in-app purchase process. Although this error is user-driven, handling it correctly in your app is essential for a smooth user experience. By managing this cancellation gracefully, developers can improve user satisfaction and even encourage users to reattempt purchases.

Error 403 - Forbidden on App Store: Causes and Fixes

November 6, 2024

Error 403 on Apple App Store

Error 403 - Forbidden is a common error developers encounter on the Apple App Store, typically occurring during app submissions. This error usually indicates a restriction or permission issue, either with the app’s configuration or related to non-compliance with App Store Guidelines. Fixing Error 403 requires careful review of Apple’s requirements and proper configuration in App Store Connect to ensure your app is ready for review.

Error Code 0 - Unknown Error on App Store: Causes and Fixes

November 6, 2024

Resolving Error Code 0 on App Store

Error Code 0, also known as SKErrorDomain Code=0, is an unknown error encountered on the Apple App Store, typically during testing of in-app purchases. This error signifies an unexpected issue within the StoreKit framework and can disrupt the purchase process, especially in sandbox environments. Troubleshooting Error Code 0 involves reviewing setup configurations and ensuring stable test environments.

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micro-interactions in subscription UX

November 8, 2024

The Power of Micro-Interactions in Subscription UX: Small Touches, Big Impact

Boost your subscription business with the power of micro-interactions. Learn how to improve user experience, increase conversions, and reduce churn through thoughtful design.

customer support for subscription business

October 22, 2024

How Customer Support Fuels Growth and Retention in Subscription Businesses

Learn why customer support is the backbone of subscription-based businesses, and discover actionable strategies to improve retention and create a better user experience

20 Mobile Paywall Examples

September 15, 2024

20 Types of Mobile App Paywalls for Better Conversion Rates

Explore different types of subscription paywalls from 20 top mobile apps. Learn about paywall design patterns that can help increase your conversion rate.

optimizing mobile app paywall placement

September 14, 2024

Paywall Placement Optimization: Strategies for Maximizing Revenue and Engagement

Optimizing the placement of paywalls in a mobile app is critical to improving user experience and maximizing revenue. A paywall that appears at the right time and place can encourage users to convert without being overly intrusive, while poor placement can drive them away. Understanding how to balance these factors requires strategic thinking and data-driven insights.

taking users from web to app

September 11, 2024

Building High-Converting Web2App Funnels

Discover how to build high-converting web2app funnels that effectively guide potential customers from your website to your app. Learn the secrets to maximizing conversions, creating a seamless user experience, and driving long-term growth for your subscription business.

mobile app paywall design

September 6, 2024

How to Design a Paywall for Mobile Apps: A Pro Guide

Designing a paywall for a mobile app requires a strategic balance between usability, psychology, and business goals. A well-designed paywall is essential for converting free users into paying customers while ensuring that the experience feels seamless and non-intrusive. By prioritizing both user experience and monetization, app developers can create a paywall that maximizes revenue without alienating users.

How to Promote In-App Purchases on iOS: A Step-by-Step Guide

August 31, 2024

How to Promote In-App Purchases on iOS: A Step-by-Step Guide

Promotional in-app purchases are a powerful way to increase engagement, boost revenue, and attract new users within your iOS app. By leveraging Apple’s StoreKit framework, developers can offer special promotions or discounts on in-app content. These promotions can be displayed directly in the App Store, which improves visibility and enhances the user experience.

How to use cohort analysis for growth loops

August 26, 2024

Driving Customer Retention and Revenue with Cohort Analysis

Boost your subscription business with cohort analysis. Learn how to identify high-growth cohorts, address low-performing segments, and optimize customer lifetime value.

Metrics to track paywall performance

August 13, 2024

Paywall Performance: Key Metrics to Drive Revenue and Growth

Discover the key metrics that drive paywall success. Learn how to measure and optimize your paywall performance to boost revenue, increase subscriber growth, and enhance reader engagement.

Reasons why users cancel subscriptions

Top Reasons Users Cancel Your Subscription

Uncover the top reasons why users ditch subscriptions, what you can do to improve your subscription service, and how to boost retention.

Cross-platform paywall optimization

Crack the Code to Cross-Platform Paywalls: Your Ultimate Guide

Struggling to create paywalls that convert across mobile, web, and TV? Our free ebook reveals the secrets to building device-specific paywall strategies. Learn how to optimize for each platform, measure performance, and boost your app's revenue. Download now!

two environments side-by-side

Fitting Paywalls to User Context – A Guide to Driving Conversions

Discover how to personalize your app paywalls to user context, device, and journey stage. Unlock tactics of paywall A/B testing to craft frictionless experiences that drive conversions.

A chrysalis turns into a butterfly on a phone

50 Mobile App Growth Hacking Tactics You Can Try Today

Discover how you can increase mobile app subscriptions with 50 growth hacks – experiment across different stages of the user journey with paywall AB testing, best practices for user acquisition and using in-app features to drive subscription growth.

App Name on App Store page

How to Change the App Name in App Store Connect: A Step-by-Step Guide

Changing the app name in App Store Connect is an essential task for developers and marketers aiming to keep their app’s branding consistent and up-to-date. Whether you're rebranding, making minor adjustments, or aligning with a marketing campaign, App Store Connect provides a straightforward process to update your app's name.

Man holding a smartphone displaying a variety of apps on the screen

Beyond the wall – how to craft app paywalls that convert users and drive revenue

Learn how to craft compelling paywalls that convert users and drive sustainable revenue for your app. Discover app growth strategies like A/B testing paywalls, personalization in apps, and more.

CTV product selection paywall

October 31, 2023

Streamlined Success: Best Practices for Subscription Commerce on Connected TV Apps

Explore the crucial strategies for optimizing subscription-based revenue on Connected TV apps. Learn 5 essential best practices to drive more conversions.

paywall ab testing for mobile paywall

Maximizing Revenue and User Engagement: Insights from Paywall AB Testing for Mobile Apps

Discover the insights from paywall A/B testing for mobile apps to maximize your revenue and user engagement. Learn how to find the right pricing structures, subscription models, and paywall designs to improve your content monetization strategy.

paywall native ui

Why Using Native UI Elements for Paywall Screens in Mobile Apps is Essential

Discover the benefits of using native UI elements for paywall screens in mobile apps. From faster loading times to improved security, learn how leveraging these elements can maximize your revenue and user satisfaction.

mobile app paywall placement best practices

February 24, 2023

5 Paywall Placement Best Practices

Five tips for mobile app paywall placement best practices. Learn from top apps where to place a paywall in your app to optimize conversion.

Nami no-code paywall builder

January 13, 2023

Why You Should Use a No-Code Paywall Builder

Here are our top reasons why you should use a no-code paywall builder for your subscription app business instead of building custom paywalls in-house.

mobile app paywall product best practices

January 3, 2023

5 Paywall Best Practices for Mobile Apps - A Quick Guide

Discover five essential paywall best practices for mobile apps. Learn industry secrets about price display, number of products, and more to optimize your paywall and boost your app's revenue.

subscription app analytics

Subscription App Analytics Definitive Guide: 19 Metrics to Track

Track these 19 metrics to accelerate growth of your mobile app revenue, with this definitive guide to subscription app analytics.

two iPhones with two different paywalls

Paywall AB Testing for Optimizing In-App Revenue

Paywall AB testing is an essential strategy for any app publisher wanting to optimize revenue.

Reader Revenue App

February 24, 2022

3 Reasons to Grow Reader Revenue with Mobile Apps

Reader revenue is crucial to building a sustainable content business. See why apps should be a key part of any reader revenue strategy.

Holding an iPhone during the holiday season

November 11, 2021

App Growth Hacking for the Holidays

Here are 10 breakthrough app growth hacking techniques to take your app to new heights during the holiday season.

A smartphone and checklist

October 21, 2021

Your Subscription App Launch Checklist Should Contain These Essential Items

Add these essential items to your subscription app launch checklist to ship with the right foundation to operationalize, grow and optimize.

Promotional sale tags

August 18, 2021

Use Apple iOS Offer Codes to Acquire, Retain & Winback

Use Apple iOS Offer Codes to acquire new subscribers, retain existing subscribers or winback expired subscribers.

App design mockups on a computer screen

What Every App Developer Should Know About Design

Learn the three fundamental design traits that make great apps great.

vibrant light beams at Santa Monica pier

5 Things High Performing Subscription Apps Have In Common

Not all subscriptions apps are equal. Learn the common traits that the highest performing ones have in common.

A person holding a phone with Google Play store open

What Every App Developer Should Know About App Store Optimization

App Store Optimization (ASO) is a key strategy app developers should embrace and master to help increase discoverability.

A person with a phone and laptop

When Marketing Subscriptions & IAPs, Speed is King

App publishers need to transition their subscription and in-app purchase paywalls to CMS-based solutions for more marketing agility to experience and grow.

A woman is creating sketches of a mobile app

Design Best Practices for Paywalls

For paywalls to be effective, design matters. Learn the key best practices to making sure your getting the most out of your purchase experience.

A woman uses a laptop and holds a phone

February 25, 2020

Creating Smart Paywalls with Nami

Before Nami, paywall screens were often hardcoded into the app itself. This required a significant amount of developer time for testing, implementation, and ongoing maintenance. Nami shifts the management of your app’s paywall to the cloud.

Lock and random numbers on a screen

November 15, 2019

Data Privacy Isn’t Just for Large Enterprises

Customers, regulators, and investors are wanting early-stage companies to better handle our data while larger companies do not seem to be feeling the pressure. We take a look at the issues from the perspective of both groups.

A laptop and phone glow at night

Designing a Mobile SDK

How to put the customer experience at the center of your mobile SDK.