# Filter Change Tracker 2026 — Water and air filter reminders

> Water and air filter reminders (iPhone/iPad app by hao du.)

- Source: https://appshunter.io/ios/app/filter-change-tracker-2026/id6776786316 (this page in markdown: same URL + `.md`)
- Developer: [hao du](https://appshunter.io/developer/1454457703)
- Category: Lifestyle
- Price: $0.29 (on sale, was $0.39)
- Age rating: 4+
- Requires: iOS 15.6 · 12 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), European Spanish
- Released: 2026-06-11
- Data updated: 2026-08-03
- User reviews in markdown: https://appshunter.io/ios/app/filter-change-tracker-2026/id6776786316/reviews.md

## What is Filter Change Tracker 2026?

Filter Keeper is an offline management tool for household consumable replacements. It is designed for water purifier cartridges, air purifier filters, air conditioner filters, pre-filters, and other common home filter supplies.

You can create filter profiles for different rooms and devices, set installation dates, recommended replacement cycles, brand models, and spare quantities. The app automatically calculates days remaining and due status. Replacement logs, shopping lists, model notes, and local export help you avoid missed replacements, wrong purchases, and duplicate buying.

No login is required. The app does not connect to the network or collect personal data. All records stay only on your device.

## Chart rankings

- #190 in Top Paid · Lifestyle (US App Store)


## Version history (last 2 releases)

### 1.1 — 2026-07-26

Added a feedback feature.

### 1.0 — 2026-06-11

No release notes.

## More apps by hao du

- [Puzzle: Calculate 24](https://appshunter.io/ios/app/puzzle-calculate-24/id6760665747)
- [Pomodoro Focus Time](https://appshunter.io/ios/app/pomodoro-focus-time/id6761978201)
- [WiFi Password Memo](https://appshunter.io/ios/app/wifi-password-memo/id6762079284)
- [Password Generator New](https://appshunter.io/ios/app/password-generator-new/id6762613117)
- [Speed Test-2](https://appshunter.io/ios/app/speed-test-2/id6762631974)
- [节拍器极简](https://appshunter.io/ios/app/id6762840147)

All apps by hao du: https://appshunter.io/developer/1454457703

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*