REST API Client vs WriteAfy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
REST API Client
This tool allows users to send and analyze API requests with detailed response headers. Customize requests with query parameters, authorization, headers, and various body types. Organize and manage your saved requests efficiently.
- Send and analyze API requests
- Detailed response headers
- Customizable query parameters, auth, headers, and body
- Four flexible body types
- Search and filter requests
- Organize requests by date
- Create, save, update, and delete requests
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Send and analyze requests with detailed response headers and results. Add query parameters, authorization tokens, headers, or body content to tailor every request. Choose from four flexible body types: none, form-data, form-urlencoded, or raw. Search and filter requests by name, URL, HTTP method, or modified date, and organize them by month or year. Create, save, update, or delete requests seamlessly within the REST API Client. Fully optimized for iPadOS, with support for Smart/Magic Keyboard and time-saving keyboard shortcuts.
WriteAfy
Access powerful AI models locally or through cloud APIs. This tool offers flexible integration with GPT-4, OpenAI, Grok, and local LLMs for diverse tasks like coding, drafting, and research.
- Private local LLM support with Ollama
- OpenAI and Grok API integration
- Built-in text-only GPT-4 model
- Bing-powered real-time searches
- Image generation capabilities
- Seamless model switching
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WriteAfy (formerly ChatAPI) — Your all-in-one AI assistant featuring a free built-in text-only AI model, plus support for OpenAI, Grok, Claude, and Ollama. KEY FEATURES • Flexible AI Access: Get started with the free built-in AI model, connect supported cloud AI providers, or run private local LLMs using Ollama on your own computer or server. • Powerful & Versatile: Switch between supported AI models for writing, coding, brainstorming, research, and more. • Privacy & Control: Choose between locally hosted AI models and cloud-based AI services to fit your needs. SUBSCRIPTION OPTIONS • Monthly: Unlock premium app features, supported AI integrations, and Ollama connectivity. • Yearly: Enjoy the same premium features with annual savings. DOWNLOAD WRITEAFY TODAY — YOUR AI, YOUR WAY! Start exploring AI for free! Connect your favorite AI providers, run your own local models, and bring writing, coding, and creativity together in one powerful app. Download WriteAfy now and take control of your AI experience! PRIVACY POLICY https://sites.google.com/view/gpt-lite/privacy TERMS OF USE https://sites.google.com/view/gpt-lite/terms SUPPORT https://sites.google.com/view/gpt-lite/support DISCLAIMER WriteAfy (ChatAPI-AI) was formerly known as ChatAPI. All previous references to ChatAPI refer to WriteAfy. Third-party AI services are provided independently and may require separate accounts, API credentials, or usage fees.
Screenshots
Verdict
The clearest difference is update cadence: WriteAfy at every 8 days against REST API Client's every 3 weeks. WriteAfy also leads on iOS requirement (17.0 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. REST API Client sells 1 one-off in-app purchase and WriteAfy sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.3 for REST API Client against 4.2 for WriteAfy. Both are backed by a comparable volume of ratings — 6 and 5 respectively.
REST API Client ships an update every 3 weeks, WriteAfy every 8 days. Both last shipped on November 14, 2026.
| Parameter | REST API Client | WriteAfy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) — better | 4.2 (5 ratings) |
| Positive reviews | — | 75.0% of reviews |
| Number of ratings | 6 — better | 5 |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 49 MB |
| Age rating | 4+ | 17+ |
| Developer | Tevon Wallace | Andres Nunez Soto |
Customer experience
REST API Client
WriteAfy
In-app purchases
REST API Client
- Remove Ads$1.99
WriteAfy
- Unlimited Access (Monthly)7 Days trial$3.991 Month
- Unlimited Access (Yearly)$44.991 Year
- Pro Supporter Yearly$69.991 Year
