# Bond vs Union Protocol

The clearest difference is rating: Union Protocol at 4.8 against Bond's 4.0. Union Protocol also leads on in-app purchases (none vs 3) and device support (3 vs 1). Bond's advantage is update cadence (fortnightly vs every 6 weeks) and ratings volume (20 vs 6). On price, ads and monetization model there is nothing between them.

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

Union Protocol holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 20 and 6 respectively.

Bond ships an update fortnightly, Union Protocol every 6 weeks. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Bond | Union Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (20 ratings)](https://appshunter.io/ios/app/bond-couples-and-challenges/id6463054071/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/union-protocol-couple-tracker/id6776146648/reviews)** |
| Number of ratings | **20** | 6 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 83 MB | 121 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Zeus Innovations LLC](https://appshunter.io/developer/1478140304) | [Accord Studios Ltd.](https://appshunter.io/developer/6776146650) |

## What reviewers say

### Bond

[App page](https://appshunter.io/ios/app/bond-couples-and-challenges/id6463054071)

This app helps couples explore BDSM and kink dynamics by setting rules, tracking obedience, and managing goals. It offers a secure, private space for communication and accountability, fostering trust and deeper connection within structured relationships.

**Highlights:** Define rules and boundaries, Track tasks and habits, Manage rewards and consequences, Points system for motivation, Private couples chat, Goal setting and accountability

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $6.99 | per month |
| 3 Months Subscription | $14.99 | per 3 months |
| All Access | $29.99 | per year |


### Union Protocol

[App page](https://appshunter.io/ios/app/union-protocol-couple-tracker/id6776146648)

Enhance your relationship with shared routines, tasks, and rewards. This app fosters connection and playfulness through daily check-ins, goal setting, and private notes, creating a more intentional rhythm for couples.

**Highlights:** Create shared routines and assign tasks, Track progress and collect points, Unlock custom rewards together, Daily check-ins and partner updates, Private notes and mood tracking, Shared goals and reminders

**In-app purchases:** none


## Frequently asked questions

### Is Bond free?

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

### Is Union Protocol free?

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

### Which has better reviews, Bond or Union Protocol?

Union Protocol is rated higher. Bond averages 4.0 out of 5 from 20 ratings, while Union Protocol averages 4.8 from 6 ratings.

### Do Bond or Union Protocol have ads?

Neither Bond nor Union Protocol shows ads.

### Which is updated more often, Bond or Union Protocol?

Bond ships an update fortnightly, and Union Protocol every 6 weeks. Most recently, Bond was updated on October 11, 2026 and Union Protocol on October 12, 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.*