# NiSample (Obj vs DOF Sync Mobile

The clearest difference is update cadence: NiSample (Obj at every 3 weeks against DOF Sync Mobile's every 2 months. NiSample (Obj also leads on device support (3 vs 1) and iOS requirement (10.3 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NiSample (Obj ships an update every 3 weeks, DOF Sync Mobile every 2 months. The most recent releases landed on October 18, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | NiSample (Obj | DOF Sync Mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 2 MB | 46 MB |
| Requires iOS | **10.3** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [R&D Computer System](https://appshunter.io/developer/1098547421) | [DOF Inc.](https://appshunter.io/developer/1576793056) |

## What reviewers say

### NiSample (Obj

[App page](https://appshunter.io/ios/app/nisample-obj-c/id1098547422)

**Features:** macOS Compatibility

**In-app purchases:** none


### DOF Sync Mobile

[App page](https://appshunter.io/ios/app/dof-sync-mobile/id6451134757)

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

**In-app purchases:** none


## Frequently asked questions

### Is NiSample (Obj free?

NiSample (Obj is free to download, with no in-app purchases.

### Is DOF Sync Mobile free?

DOF Sync Mobile is free to download, with no in-app purchases.

### Do NiSample (Obj or DOF Sync Mobile have ads?

Neither NiSample (Obj nor DOF Sync Mobile shows ads.

### Which is updated more often, NiSample (Obj or DOF Sync Mobile?

NiSample (Obj ships an update every 3 weeks, and DOF Sync Mobile every 2 months. Most recently, NiSample (Obj was updated on October 18, 2026 and DOF Sync Mobile on October 4, 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.*