# Substrack vs SCUBIC+

The clearest difference is price: SCUBIC+ at Free against Substrack's $4.99. SCUBIC+ also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (15.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

SCUBIC+ is free to download; Substrack costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Substrack ships an update every 3 weeks, SCUBIC+ every 5 days. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Substrack | SCUBIC+ |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scubic-plus/id6739574673/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Paid | **Free** |
| Size | 82 MB | 128 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jinkyum Park](https://appshunter.io/developer/1697268479) | [Valiantx Co., Ltd.](https://appshunter.io/developer/1786118738) |

## What reviewers say

### Substrack

[App page](https://appshunter.io/ios/app/substrack-bills-tracker/id6451234943)

Track recurring expenses with a D-DAY countdown, widgets, and notifications. Easily add and manage subscriptions, and visualize your spending habits with detailed statistics. Features iCloud backup and dark mode for a seamless experience.

**Highlights:** Manage recurring expenses, D-DAY countdown, Widgets and notifications, Subscription browsing and adding, Expense statistics, iCloud backup, Dark mode

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

**In-app purchases:** none


### SCUBIC+

[App page](https://appshunter.io/ios/app/scubic-plus/id6739574673)

Monitor your cat's health and hygiene with a smart, connected litter box system. Receive real-time alerts for usage, track detailed waste statistics, and view health insights through convenient graphs. Control internal lighting remotely for added convenience.

**Highlights:** Real-time litter box usage alerts, Cat health and hygiene monitoring, Detailed waste statistics and graphs, Remote control of internal lighting, Wi-Fi connectivity for remote access

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

**In-app purchases:** none


## Frequently asked questions

### Is Substrack free?

Substrack costs $4.99, with no in-app purchases.

### Is SCUBIC+ free?

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

### Do Substrack or SCUBIC+ have ads?

Neither Substrack nor SCUBIC+ shows ads.

### Which is updated more often, Substrack or SCUBIC+?

Substrack ships an update every 3 weeks, and SCUBIC+ every 5 days. Most recently, Substrack was updated on October 9, 2026 and SCUBIC+ on October 8, 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.*