# GainLens vs DueCat

The clearest difference is in-app purchases: GainLens at none against DueCat's 1. GainLens also leads on iOS requirement (16.4 vs 26.6). DueCat's advantage is update cadence (every 5 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. DueCat sells 1 one-off in-app purchase. GainLens asks for nothing beyond the download.

GainLens ships an update fortnightly, DueCat every 5 days. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | GainLens | DueCat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/duecat-track-subscriptions/id6805345818/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 35 MB | 77 MB |
| Requires iOS | **16.4** | 26.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Po Jen Ko](https://appshunter.io/developer/6786138005) | [Ooi Way Min](https://appshunter.io/developer/1802647899) |

## What reviewers say

### GainLens

[App page](https://appshunter.io/ios/app/gainlens/id6786138003)

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

**In-app purchases:** none


### DueCat

[App page](https://appshunter.io/ios/app/duecat-track-subscriptions/id6805345818)

This app helps you manage your recurring bills and subscriptions by providing a clear overview of upcoming payments. Understand your spending habits with visual dashboards and get timely reminders to avoid missed renewals.

**Highlights:** Subscription and bill tracking, Upcoming payment dashboard, Monthly budget setting, Spending trend analysis, Renewal reminders, Custom organization, iCloud sync

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DueCat Pro - Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is GainLens free?

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

### Is DueCat free?

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

### Do GainLens or DueCat have ads?

Neither GainLens nor DueCat shows ads.

### Which is updated more often, GainLens or DueCat?

GainLens ships an update fortnightly, and DueCat every 5 days. Most recently, GainLens was updated on November 5, 2026 and DueCat on November 7, 2026.

---

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