# fourf vs Promise

The clearest difference is in-app purchases: fourf at none against Promise's 10. fourf also leads on update cadence (every 5 days vs fortnightly) and review sentiment (100% vs 86%). Promise's advantage is iOS requirement (15.1 vs 17.4). On price, ads and device support there is nothing between them.

Both are free to download. Promise sells 10 in-app purchases, starting at $4.99 per month. fourf asks for nothing beyond the download.

fourf ships an update every 5 days, Promise fortnightly. Both last shipped on October 30, 2026.

## The numbers

| Metric | fourf | Promise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (11 ratings)](https://appshunter.io/ios/app/promise-a-better-you/id6741165629/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | **Free** | Freemium |
| Size | 5 MB | 50 MB |
| Requires iOS | 17.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Salih Bora Ozturk](https://appshunter.io/developer/1729658833) | [Arete Labs LLC](https://appshunter.io/developer/1793387083) |

## What reviewers say

### fourf

[App page](https://appshunter.io/ios/app/fourf/id6503328526)

Capture thoughts, memories, and routines effortlessly with this journaling app. Its chat-like interface and social features allow for shared memories and easy organization across devices. Build a consistent habit with reminders and customizable appearance.

**Highlights:** Chat-like journaling interface, Mention friends for shared memories, Single-tap routine tracking, Effortless organization and search, Multi-device compatibility, Customizable appearance, Journaling habit reminders

**Features:** macOS Compatibility

**In-app purchases:** none


### Promise

[App page](https://appshunter.io/ios/app/promise-a-better-you/id6741165629)

This app helps users build better habits and achieve goals through social accountability. Create or join challenges with friends, set commitments, and support each other's progress with features like wagers and group chat. Track your success visually and stay motivated together.

**Highlights:** Custom challenge creation, Promise-based wagers, Social accountability tracking, In-challenge group chat, Visual progress monitoring, Dark mode support

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Promise Pro - Monthly | $4.99 | per month |
| Promise Pro - Monthly | $4.99 | per month |
| Promise Pro - Monthly | $9.99 | per month |
| Promise Pro - Monthly | $9.99 | per month |
| Promise Pro - Yearly | $29.99 | per year |
| Promise Pro - Yearly | $29.99 | per year |
| Promise Pro - Yearly | $39.99 | per year |
| Promise Pro - Yearly | $39.99 | per year |
| Promise Pro - Yearly | $59.99 | per year |
| Promise Pro - Yearly | $59.99 | per year |


## Frequently asked questions

### Is fourf free?

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

### Is Promise free?

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

### Do fourf or Promise have ads?

Neither fourf nor Promise shows ads.

### Which is updated more often, fourf or Promise?

fourf ships an update every 5 days, and Promise fortnightly. Most recently, fourf was updated on October 30, 2026 and Promise on October 30, 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.*