# MultiSync vs AQL

MultiSync and AQL are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. MultiSync sells 4 in-app purchases, starting at $2.99 per month and AQL sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on August 17, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | MultiSync | AQL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Size | 69 MB | 8 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Michelin](https://appshunter.io/developer/994145743) | [IDEVO Marcin Kedra](https://appshunter.io/developer/1674921794) |

## What reviewers say

### MultiSync

[App page](https://appshunter.io/ios/app/multisync/id1631133422)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pressure Monitoring - Monthly | $2.99 | per month |
| My Tire Engineer - Monthly | $3.99 | per month |
| Pressure Monitoring - Yearly | $29.99 | per year |
| My Tire Engineer - Yearly | $44.99 | per year |


### AQL

[App page](https://appshunter.io/ios/app/aql-aquarium-log/id6445925942)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AQL PRO | $3.99 | one-time |


## Frequently asked questions

### Is MultiSync free?

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

### Is AQL free?

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

### Do MultiSync or AQL have ads?

Neither MultiSync nor AQL shows ads.

### Which is updated more often, MultiSync or AQL?

MultiSync ships an update every 6 weeks, and AQL every 6 weeks. Most recently, MultiSync was updated on August 17, 2026 and AQL on September 1, 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.*