# Codex Calc vs 小灵龙App

The clearest difference is review sentiment: Codex Calc at 100% against 小灵龙App's 33%. Codex Calc also leads on rating (4.0 vs 1.0) and ads (none vs shown). 小灵龙App's advantage is price (Free vs $0.99) and update cadence (monthly vs every 6 months). On in-app purchases and device support there is nothing between them.

小灵龙App is free to download; Codex Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Codex Calc holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: 小灵龙App has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Codex Calc's written reviews are positive against 33% of 小灵龙App's.

Codex Calc ships an update every 6 months, 小灵龙App monthly. The most recent releases landed on June 5, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Codex Calc | 小灵龙App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/codex-calc/id505057155/reviews)** | [1.0 (12 ratings)](https://appshunter.io/ios/app/app/id1221738240/reviews) |
| Number of ratings | 1 | **12** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Paid | **Free** |
| Size | 11 MB | 157 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Driftwood Studio Software LLC](https://appshunter.io/developer/1822849713) | [北京新中新诚通信息技术股份有限公司](https://appshunter.io/developer/736575065) |

## What reviewers say

### Codex Calc

[App page](https://appshunter.io/ios/app/codex-calc/id505057155)

This app offers a powerful yet intuitive calculator experience with a variety of modes including scientific, unit conversion, and tip calculation. It features a customizable interface and a detailed history tape for all your calculations.

**Highlights:** Full scientific calculator functions, Unit converter, Tip calculator, RPN mode, History tape, Customizable interface, Multiple visual themes

**Features:** macOS Compatibility

**In-app purchases:** none


### 小灵龙App

[App page](https://appshunter.io/ios/app/app/id1221738240)

This app provides comprehensive mobile services for campus cards, including traditional card functions like consumption and authentication, enhanced with QR code capabilities. It offers features for managing your campus card, paying various campus fees, and booking campus facilities.

**Highlights:** Campus card management, QR code functionality, Campus fee payments, Facility booking, Card application and registration

**In-app purchases:** none


## Frequently asked questions

### Is Codex Calc free?

Codex Calc costs $0.99, with no in-app purchases.

### Is 小灵龙App free?

小灵龙App is free to download, with no in-app purchases.

### Which has better reviews, Codex Calc or 小灵龙App?

Codex Calc is rated higher. Codex Calc averages 4.0 out of 5 from 1 ratings, while 小灵龙App averages 1.0 from 12 ratings.

### Do Codex Calc or 小灵龙App have ads?

小灵龙App shows ads; Codex Calc does not.

### Which is updated more often, Codex Calc or 小灵龙App?

Codex Calc ships an update every 6 months, and 小灵龙App monthly. Most recently, Codex Calc was updated on June 5, 2026 and 小灵龙App on September 22, 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.*