# ReefLogger — Reef tank dosing & log

> Reef tank dosing & log (iPhone/iPad app by Jan Roldan Hernandez.)

- Source: https://appshunter.io/ios/app/reeflogger/id6787198932 (this page in markdown: same URL + `.md`)
- Developer: [Jan Roldan Hernandez](https://appshunter.io/developer/1896444338)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2026-07-10
- Data updated: 2026-08-11
- User reviews in markdown: https://appshunter.io/ios/app/reeflogger/id6787198932/reviews.md

## What is ReefLogger?

ReefLog is the fast, private way to keep your saltwater or reef aquarium stable — and the only log that tells you what to actually do about your numbers.

Most aquarium apps just store readings. ReefLog reads the trend and turns it into action: it sees your alkalinity slipping, projects when it will fall out of range, and recommends the exact dose to hold it steady.

LOG IN SECONDS
• Track alkalinity, calcium, magnesium, nitrate, phosphate, salinity, temperature, and pH
• Sensible ideal ranges built in, with instant in-range / out-of-range feedback
• Back-date readings and fix mistakes easily

SEE TRENDS BEFORE TROUBLE
• Clean history charts with the ideal range shaded in
• A "Today" view that surfaces what needs attention, ranked by urgency
• Early warnings when a parameter is trending out of range

KNOW EXACTLY WHAT TO DOSE
• Calibrate your supplements once to your own tank — no guessing a brand's strength
• Get precise maintenance doses that offset your tank's real consumption
• Get correction plans that respect safe daily raise limits

STAY ON SCHEDULE
• Maintenance reminders for water changes, dosing, and filter care
• Per-task notifications, fully on-device

PRIVATE BY DESIGN
• Everything stays on your device — no account, no cloud, no tracking
• Your tank data is yours

Everything in ReefLog is free for a single tank — full history, trend charts, the dosing planner, maintenance reminders, and CSV export. A one-time premium upgrade adds unlimited tanks so you can track every system you keep — pay once, yours forever. No subscription.

Whether you run a nano reef or a mixed reef showpiece, ReefLog helps you keep it stable with less guesswork.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ReefLogger Pro | $9.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-07-10

No release notes.

## More apps by Jan Roldan Hernandez

- [Recipeculator](https://appshunter.io/ios/app/recipeculator/id6767253434)
- [BisonCreds](https://appshunter.io/ios/app/bisoncreds/id6768556667)
- [Rumble Word](https://appshunter.io/ios/app/rumble-word/id6769076991)
- [SimplePasteVault](https://appshunter.io/ios/app/simplepastevault/id6770505391)
- [Alarmu](https://appshunter.io/ios/app/alarmu/id6771878639)
- [CertPrep: Cloud Fundamentals](https://appshunter.io/ios/app/certprep-cloud-fundamentals/id6775019424)

All apps by Jan Roldan Hernandez: https://appshunter.io/developer/1896444338

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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 2026-08-11.*