# CleanMax Lite vs TallyRig

The clearest difference is rating: CleanMax Lite at 5.0 against TallyRig's 4.0. CleanMax Lite also leads on in-app purchases (none vs 1) and iOS requirement (8.0 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. TallyRig sells 1 one-off in-app purchase. CleanMax Lite asks for nothing beyond the download.

CleanMax Lite holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CleanMax Lite ships an update every 2 months, TallyRig every 3 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CleanMax Lite | TallyRig |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cleanmax-lite/id1190494072/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/tallyrig-well-control-calc/id6758645641/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 14 MB | 33 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pegasus Vertex, Inc.](https://appshunter.io/developer/954796003) | [嘉炜 丰](https://appshunter.io/developer/1759511819) |

## What reviewers say

### CleanMax Lite

[App page](https://appshunter.io/ios/app/cleanmax-lite/id1190494072)

This mobile tool assists with wellbore cleanup operations by calculating fluid volumes and contact times. It also generates 2D and 3D animations to visualize fluid displacement, aiming to reduce formation damage and enhance well productivity.

**Highlights:** Fluid volume calculations, Contact time calculations, 2D fluid displacement animations, 3D fluid displacement animations, Wellbore cleanup operations aid

**Features:** macOS Compatibility

**In-app purchases:** none


### TallyRig

[App page](https://appshunter.io/ios/app/tallyrig-well-control-calc/id6758645641)

This app provides a suite of 17 oilfield and drilling calculators designed for field use. It features a digital tally-book history to save and share results, with offline functionality and a user-friendly interface for rig environments. Supports multiple languages and unit systems.

**Highlights:** 17 oilfield & drilling calculators, Digital tally-book history, Offline-first functionality, Sunlight Mode for outdoor readability, Glove-friendly interface, Formula review and show-work, Imperial and Metric unit support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TallyRig Pro | $14.99 | one-time |


## Frequently asked questions

### Is CleanMax Lite free?

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

### Is TallyRig free?

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

### Which has better reviews, CleanMax Lite or TallyRig?

CleanMax Lite is rated higher. CleanMax Lite averages 5.0 out of 5 from 1 ratings, while TallyRig averages 4.0 from 1 ratings.

### Do CleanMax Lite or TallyRig have ads?

Neither CleanMax Lite nor TallyRig shows ads.

### Which is updated more often, CleanMax Lite or TallyRig?

CleanMax Lite ships an update every 2 months, and TallyRig every 3 months. Most recently, CleanMax Lite was updated on November 2, 2026 and TallyRig 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.*