# Relationship Tracker ‎ vs Invisible String

The clearest difference is ads: Invisible String at none against Relationship Tracker ‎'s shown. Invisible String also leads on review sentiment (100% vs 70%) and rating (5.0 vs 4.7). Relationship Tracker ‎'s advantage is ratings volume (1.6K vs 2). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Relationship Tracker ‎ sells 4 in-app purchases, starting at $0.99 per month and Invisible String sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Invisible String holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Relationship Tracker ‎ has 1.6K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 70% of Relationship Tracker ‎'s written reviews are positive against 100% of Invisible String's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Relationship Tracker ‎ | Invisible String |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.6K ratings)](https://appshunter.io/ios/app/relationship-tracker/id1621331757/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/invisible-string/id6757892661/reviews)** |
| Number of ratings | **1.6K** | 2 |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 307 MB | 13 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Zaffles](https://appshunter.io/developer/1078438438) | [CatalystNeuro, LLC](https://appshunter.io/developer/1869483205) |

## What reviewers say

### Relationship Tracker ‎

[App page](https://appshunter.io/ios/app/relationship-tracker/id1621331757)

Track the duration of your relationships with a beautiful interface and customizable backgrounds. Receive daily notifications and reminders for anniversaries. Share your relationship milestones easily with others.

**Highlights:** Relationship duration tracking, Customizable background images, Home screen widget, Daily notifications, Anniversary reminders, Share tracking with friends/family, Offline functionality

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Relationship Supporter/Monthly | $0.99 | per month |
| Relationship Supporter/Annual | $4.99 | per year |
| Relationship Tracker Lifetime | $2.99 | one-time |
| Relationship Tracker Lifetime | $6.99 | one-time |


### Invisible String

[App page](https://appshunter.io/ios/app/invisible-string/id6757892661)

Explore the hidden connections in your relationship by comparing geotagged photos with your partner. Discover shared locations and times you were near each other before officially meeting. Uncover the unique story of how fate may have brought you together.

**Highlights:** Compare geotagged photos, Find 'near miss' locations, Discover shared past moments, See proximity details, View side-by-side photos, Privacy-focused local comparison

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Your Story | $2.99 | one-time |
| Expansion pack | $2.99 | one-time |


## Frequently asked questions

### Is Relationship Tracker ‎ free?

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

### Is Invisible String free?

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

### Which has better reviews, Relationship Tracker ‎ or Invisible String?

Invisible String is rated higher. Relationship Tracker ‎ averages 4.7 out of 5 from 1.6K ratings, while Invisible String averages 5.0 from 2 ratings.

### Do Relationship Tracker ‎ or Invisible String have ads?

Relationship Tracker ‎ shows ads; Invisible String does not.

### Which is updated more often, Relationship Tracker ‎ or Invisible String?

Relationship Tracker ‎ ships an update every 3 weeks, and Invisible String every 3 weeks. Most recently, Relationship Tracker ‎ was updated on October 11, 2026 and Invisible String on October 7, 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.*