# DocShelf vs TriTab Calc

The clearest difference is price: DocShelf at Free against TriTab Calc's $2.99. DocShelf also leads on update cadence (every 2 days vs fortnightly) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

DocShelf is free to download; TriTab Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DocShelf ships an update every 2 days, TriTab Calc fortnightly. The most recent releases landed on October 12, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | DocShelf | TriTab Calc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/tritab-calc-multi-calculator/id6785739399/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | — | Paid |
| Size | 31 MB | 11 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sunil Mulgund](https://appshunter.io/developer/1896692548) | [HIROKI MURAI](https://appshunter.io/developer/6785739401) |

## What reviewers say

### DocShelf

[App page](https://appshunter.io/ios/app/docshelf-documents-simplified/id6770281835)

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

**In-app purchases:** none


### TriTab Calc

[App page](https://appshunter.io/ios/app/tritab-calc-multi-calculator/id6785739399)

Perform multiple calculations simultaneously with three independent tabs. Easily switch between calculations, track history, and copy/paste results. Ideal for managing estimates, invoices, and everyday math tasks without ads or account creation.

**Highlights:** Three independent calculator tabs, Calculation history, Copy and paste functionality, Dedicated tax calculation, Basic arithmetic and advanced functions, Large, clear display, Ad-free and no account required

**In-app purchases:** none


## Frequently asked questions

### Is DocShelf free?

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

### Is TriTab Calc free?

TriTab Calc costs $2.99, with no in-app purchases.

### Do DocShelf or TriTab Calc have ads?

Neither DocShelf nor TriTab Calc shows ads.

### Which is updated more often, DocShelf or TriTab Calc?

DocShelf ships an update every 2 days, and TriTab Calc fortnightly. Most recently, DocShelf was updated on October 12, 2026 and TriTab Calc on October 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*