# Authenticator App vs iMotor Smart Services

The clearest difference is in-app purchases: iMotor Smart Services at none against Authenticator App's 4. iMotor Smart Services also leads on iOS requirement (12.0 vs 16.0). Authenticator App's advantage is update cadence (every 10 days vs every 4 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Authenticator App sells 3 in-app purchases, starting at $1.99 per month. iMotor Smart Services asks for nothing beyond the download.

Authenticator App ships an update every 10 days, iMotor Smart Services every 4 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Authenticator App | iMotor Smart Services |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (32 ratings)](https://appshunter.io/ios/app/authenticator-app-sentinel/id1189922806/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 72.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 47 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tommaso Carpi](https://appshunter.io/developer/714996025) | [Zhejiang iMotorLinx Technology Co. Ltd.](https://appshunter.io/developer/1599044996) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-sentinel/id1189922806)

Secure your online accounts with this app that manages all your two-factor authentication (2FA) codes in one place. It offers seamless syncing across devices, organized folders, and encrypted backups for peace of mind. Personalize your experience with custom icons and themes for easy account recognition.

**Highlights:** Manage all 2FA codes in one app, Seamless sync across Apple devices, Encrypted backups for code protection, Organize accounts with folders, Custom icons and themes, iOS & macOS widgets for quick access

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $9.99 | per year |
| Lifetime Access | $39.99 | one-time |

**What reviewers like**

- 👍 Easy to use and set up
- 🚀 Seamless syncing across devices (iOS, macOS)
- 🔒 Secure and dependable 2FA solution
- 💡 Responsive and friendly developer
- 💰 One-time purchase/lifetime option appreciated

**What reviewers complain about**

- 🐛 Widgets not working consistently (Mac/iPhone)
- 💰 Paid app, no free tier for some features
- 🐛 Some users experienced issues with syncing
- 🐛 Codes not working for specific services (e.g., Discord, Amazon)
- 🐛 App stuck on loading tokens for some users

**Reported bugs**

- Widgets not working on Mac Desktop and iPhone
- App stuck on loading tokens
- Syncing issues between devices
- Codes not working for specific services (Discord, Amazon)
- Unexpected charges/multiple purchases

**Requested features**

- Ability to reorder/hide folders
- Sort accounts by email address or service
- Show duplicates
- Show date service added
- Backup options (more explicit)


### iMotor Smart Services

[App page](https://appshunter.io/ios/app/imotor-smart-services/id1672898252)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator App free?

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

### Is iMotor Smart Services free?

iMotor Smart Services is free to download, with no in-app purchases.

### Do Authenticator App or iMotor Smart Services have ads?

Neither Authenticator App nor iMotor Smart Services shows ads.

### Which is updated more often, Authenticator App or iMotor Smart Services?

Authenticator App ships an update every 10 days, and iMotor Smart Services every 4 months. Most recently, Authenticator App was updated on October 24, 2026 and iMotor Smart Services on October 7, 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.*