# D.S.Reader vs WonderCalc

The clearest difference is ads: WonderCalc at none against D.S.Reader's shown. WonderCalc also leads on update cadence (every 5 days 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.

D.S.Reader ships an update monthly, WonderCalc every 5 days. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | D.S.Reader | WonderCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/wondercalc/id6444459924/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | — | Free |
| Size | 93 MB | 5 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Yi Li](https://appshunter.io/developer/1592052133) | [SharkMonkey Apps](https://appshunter.io/developer/1654824300) |

## What reviewers say

### D.S.Reader

[App page](https://appshunter.io/ios/app/dsreader/id1592052131)

**Features:** macOS Compatibility

**In-app purchases:** none


### WonderCalc

[App page](https://appshunter.io/ios/app/wondercalc/id6444459924)

This utility app handles all your basic calculation needs, including unit conversions for length, weight, and temperature. It also offers advanced financial calculations for loans, such as monthly payments, total cost, and interest paid.

**Highlights:** Basic calculations, Cut, copy, and paste functionality, Unit conversions (length, weight, temperature), Loan payment calculations, Total loan cost and interest calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is D.S.Reader free?

D.S.Reader is free to download, with no in-app purchases.

### Is WonderCalc free?

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

### Do D.S.Reader or WonderCalc have ads?

D.S.Reader shows ads; WonderCalc does not.

### Which is updated more often, D.S.Reader or WonderCalc?

D.S.Reader ships an update monthly, and WonderCalc every 5 days. Most recently, D.S.Reader was updated on September 28, 2026 and WonderCalc on September 30, 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.*