# FEITIAN OTP Mobile vs Advance Maintenance Solution

The clearest difference is update cadence: Advance Maintenance Solution at weekly against FEITIAN OTP Mobile's every 12 months. FEITIAN OTP Mobile's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

FEITIAN OTP Mobile ships an update every 12 months, Advance Maintenance Solution weekly. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | FEITIAN OTP Mobile | Advance Maintenance Solution |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Size | 20 MB | 62 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FEITIAN Technologies Co.,Ltd.](https://appshunter.io/developer/398121823) | [GAMUT INFOSYSTEMS LIMITED](https://appshunter.io/developer/1177622095) |

## What reviewers say

### FEITIAN OTP Mobile

[App page](https://appshunter.io/ios/app/feitian-otp-mobile/id6446276574)

**Features:** macOS Compatibility

**In-app purchases:** none


### Advance Maintenance Solution

[App page](https://appshunter.io/ios/app/advance-maintenance-solution/id6758662279)

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

**In-app purchases:** none


## Frequently asked questions

### Is FEITIAN OTP Mobile free?

FEITIAN OTP Mobile is free to download, with no in-app purchases.

### Is Advance Maintenance Solution free?

Advance Maintenance Solution is free to download, with no in-app purchases.

### Do FEITIAN OTP Mobile or Advance Maintenance Solution have ads?

Neither FEITIAN OTP Mobile nor Advance Maintenance Solution shows ads.

### Which is updated more often, FEITIAN OTP Mobile or Advance Maintenance Solution?

FEITIAN OTP Mobile ships an update every 12 months, and Advance Maintenance Solution weekly. Most recently, FEITIAN OTP Mobile was updated on October 16, 2026 and Advance Maintenance Solution on October 24, 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.*