# Delete duplicate photos vs Authenticator

The clearest difference is ads: Authenticator at none against Delete duplicate photos's shown. Delete duplicate photos's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Delete duplicate photos sells 3 in-app purchases, starting at $4.99 per 7 days and Authenticator sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Delete duplicate photos ships an update monthly, Authenticator every 3 weeks. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Delete duplicate photos | Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (455 ratings)](https://appshunter.io/ios/app/delete-duplicate-photos-wipe/id1639103117/reviews)** | — |
| Number of ratings | **455** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 21 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Jones](https://appshunter.io/developer/1639103119) | [STRATADEV STUDIO LIMITED](https://appshunter.io/developer/1834679038) |

## What reviewers say

### Delete duplicate photos

[App page](https://appshunter.io/ios/app/delete-duplicate-photos-wipe/id1639103117)

This app helps you free up iPhone storage by deleting duplicate and similar photos and videos. It also organizes contacts, removes expired calendar events, and offers smart cleaning features. A guide provides additional storage-saving tips.

**Highlights:** Delete duplicate and similar photos/videos, AI-powered photo comparison, Organize and merge duplicate contacts, Remove expired calendar events/reminders, Automatic smart cleaning, Storage saving guide

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Storage Cleaner | $4.99 | per 7 days |
| Smart Cleaner for iPhone Pro | $9.99 | per month |
| Cleaner+ Premium | $29.99 | one-time |


### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-otp-and-2fa-code/id6807344476)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authly Access | $6.99 | per 7 days |
| Authly Access | $7.99 | per 7 days |


## Frequently asked questions

### Is Delete duplicate photos free?

Delete duplicate photos is free to download, with in-app purchases available.

### Is Authenticator free?

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

### Do Delete duplicate photos or Authenticator have ads?

Delete duplicate photos shows ads; Authenticator does not.

### Which is updated more often, Delete duplicate photos or Authenticator?

Delete duplicate photos ships an update monthly, and Authenticator every 3 weeks. Most recently, Delete duplicate photos was updated on October 27, 2026 and Authenticator on October 31, 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.*