# Time Passage vs Ring Sizer

The clearest difference is in-app purchases: Time Passage at none against Ring Sizer's 2. Ring Sizer's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $2.99 per 7 days. Time Passage asks for nothing beyond the download.

Time Passage ships an update every 5 months, Ring Sizer every 8 months. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Time Passage | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/time-passage/id6479194014/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 8 months |
| Monetization | Free | — |
| Size | 6 MB | 45 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [楚江 王](https://appshunter.io/developer/1714265259) | [Andrii Kulchytskyi](https://appshunter.io/developer/1759867572) |

## What reviewers say

### Time Passage

[App page](https://appshunter.io/ios/app/time-passage/id6479194014)

Calculate the duration of time elapsed since a specific date. Input a birthday or any past date to see how much time has passed in years, months, days, and even seconds.

**Highlights:** Calculate time elapsed, Input past dates, View duration in years, months, days, View duration in seconds, Birthday calculation

**Features:** Vision Pro support

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-size-measure-app/id6757514085)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Weekly with 3 days trial | $2.99 | per 7 days |
| Ring Sizer Yearly | $14.99 | per year |


## Frequently asked questions

### Is Time Passage free?

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

### Is Ring Sizer free?

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

### Do Time Passage or Ring Sizer have ads?

Neither Time Passage nor Ring Sizer shows ads.

### Which is updated more often, Time Passage or Ring Sizer?

Time Passage ships an update every 5 months, and Ring Sizer every 8 months. Most recently, Time Passage was updated on October 10, 2026 and Ring Sizer on October 15, 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.*