# Infinity vs WriteFlow

The clearest difference is in-app purchases: Infinity at none against WriteFlow's 3. WriteFlow's advantage is update cadence (every 5 days vs every 29 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. WriteFlow sells 3 in-app purchases, starting at $6.99 per month. Infinity asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Infinity against 5.0 for WriteFlow. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Infinity ships an update every 29 months, WriteFlow every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Infinity | WriteFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/infinity-1st-call/id6451249868/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/writeflow-ai-writing-keyboard/id6759579216/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Size | 121 MB | 27 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [1st Call](https://appshunter.io/developer/1697299507) | [Juraj Gajdos](https://appshunter.io/developer/1879621198) |

## What reviewers say

### Infinity

[App page](https://appshunter.io/ios/app/infinity-1st-call/id6451249868)

This app provides Unified Communications by extending VoIP functionality to mobile devices. Users can maintain a consistent identity for calls, manage contacts, voicemail, and call history from one place. It also allows for efficient communication through answering rules, greetings, and presence management.

**Highlights:** Unified Communications solution, VoIP functionality on mobile, Maintain same identity across devices, Contact management, Voicemail and call history, Answering rules and presence management

**Features:** macOS Compatibility, Siri integration, Vision Pro support

**In-app purchases:** none


### WriteFlow

[App page](https://appshunter.io/ios/app/writeflow-ai-writing-keyboard/id6759579216)

Enhance your writing directly within any app. This AI-powered keyboard offers instant grammar correction, text rewriting, translation, and tone adjustment. Improve your messages, emails, and social media posts effortlessly.

**Highlights:** Instant grammar and spelling correction, Text rewriting and paraphrasing, Multilingual translation, Tone adjustment (professional, friendly, etc.), Customizable AI prompts, Works across multiple apps

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WriteFlow AI Keyboard | $6.99 | per month |
| WriteFlow AI Keyboard | $39.99 | per 6 months |
| WriteFlow AI Keyboard | $49.99 | per year |


## Frequently asked questions

### Is Infinity free?

Infinity is free to download, with no in-app purchases.

### Is WriteFlow free?

WriteFlow is free to download, with in-app purchases available.

### Which has better reviews, Infinity or WriteFlow?

Infinity and WriteFlow are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Infinity or WriteFlow have ads?

Neither Infinity nor WriteFlow shows ads.

### Which is updated more often, Infinity or WriteFlow?

Infinity ships an update every 29 months, and WriteFlow every 5 days. Most recently, Infinity was updated on November 3, 2026 and WriteFlow on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*