# Duplicate Cleaner vs Chemistry Equations

The clearest difference is ads: Chemistry Equations at none against Duplicate Cleaner's shown. Chemistry Equations also leads on update cadence (weekly vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Duplicate Cleaner ships an update monthly, Chemistry Equations weekly. Both last shipped on October 29, 2026.

## The numbers

| Metric | Duplicate Cleaner | Chemistry Equations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.4K ratings)](https://appshunter.io/ios/app/duplicate-cleaner-storage/id1185398417/reviews)** | — |
| Number of ratings | **3.4K** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Softices Consultancy Private Limited](https://appshunter.io/developer/1036738121) | [JIESUS RICARDO ROJAS MANJARREZ](https://appshunter.io/developer/1882247572) |

## What reviewers say

### Duplicate Cleaner

[App page](https://appshunter.io/ios/app/duplicate-cleaner-storage/id1185398417)

Free up iPhone storage by finding and removing duplicate photos, videos, and contacts. Organize your media and contacts with a simple, reliable cleanup tool. Back up and restore your contacts for added safety.

**Highlights:** Remove duplicate and similar photos, Delete duplicate videos, Find and remove duplicate contacts, Merge duplicate contacts, Bulk contact deletion, Backup and restore contacts

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and efficient
- 💡 Helpful for finding duplicates
- 🔒 Good privacy policy

**What reviewers complain about**

- 🐛 Laggy after update
- 🐛 Inaccurate duplicate detection
- 💸 Too many ads
- 🐛 Crashes frequently

**Reported bugs**

- Deletes non-duplicate photos
- Merges all contacts into one
- Springboard rebooting indefinitely
- Crashes when scanning for duplicate photos

**Requested features**

- Ability to ignore 0-byte files
- Display file names and favorite status
- Bulk merge all duplicates per contact
- Larger image previews and selection dots


### Chemistry Equations

[App page](https://appshunter.io/ios/app/chemistry-equations-chemy-plus/id6812942953)

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

**In-app purchases:** none


## Frequently asked questions

### Is Duplicate Cleaner free?

Duplicate Cleaner is free to download, with no in-app purchases.

### Is Chemistry Equations free?

Chemistry Equations is free to download, with no in-app purchases.

### Do Duplicate Cleaner or Chemistry Equations have ads?

Duplicate Cleaner shows ads; Chemistry Equations does not.

### Which is updated more often, Duplicate Cleaner or Chemistry Equations?

Duplicate Cleaner ships an update monthly, and Chemistry Equations weekly. Most recently, Duplicate Cleaner was updated on October 29, 2026 and Chemistry Equations on October 29, 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.*