# ThreadSplit vs Altimeter

The clearest difference is in-app purchases: Altimeter at none against ThreadSplit's 3. Altimeter also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ThreadSplit sells 3 in-app purchases, starting at $0.99 per month. Altimeter asks for nothing beyond the download.

ThreadSplit ships an update every 6 days, Altimeter weekly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | ThreadSplit | Altimeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (68 ratings)](https://appshunter.io/ios/app/altimeter-real-time-altitude/id6755687132/reviews)** |
| Number of ratings | — | **68** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | — | Free |
| Size | 41 MB | 60 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [雷雷 张](https://appshunter.io/developer/1803875512) | [海瑞 彭](https://appshunter.io/developer/1739283160) |

## What reviewers say

### ThreadSplit

[App page](https://appshunter.io/ios/app/threadsplit-tweet-splitter/id6754634135)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThreadSplit Pro — Monthly | $0.99 | per month |
| ThreadSplit Pro — Yearly | $5.99 | per year |
| Lifetime | $2.99 | one-time |


### Altimeter

[App page](https://appshunter.io/ios/app/altimeter-real-time-altitude/id6755687132)

This utility app provides real-time altitude measurements using GPS and barometric sensors. It also offers route tracking, direction guidance, and works offline, making it ideal for outdoor activities and daily reference.

**Highlights:** Real-time altitude display, Accuracy information, Direction and location assistance, Route tracking, Offline functionality, Low power consumption

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

**In-app purchases:** none


## Frequently asked questions

### Is ThreadSplit free?

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

### Is Altimeter free?

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

### Do ThreadSplit or Altimeter have ads?

Neither ThreadSplit nor Altimeter shows ads.

### Which is updated more often, ThreadSplit or Altimeter?

ThreadSplit ships an update every 6 days, and Altimeter weekly. Most recently, ThreadSplit was updated on October 24, 2026 and Altimeter on October 29, 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.*