# Water System Logbook — Daily readings for operators

> Daily readings for operators (iPhone/iPad app by Gabriel Petersen.)

- Source: https://appshunter.io/ios/app/water-system-logbook/id6817054874 (this page in markdown: same URL + `.md`)
- Developer: [Gabriel Petersen](https://appshunter.io/developer/6809217497)
- Category: Business, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 4 MB
- Languages: American English
- Released: 2026-10-01
- Data updated: 2026-10-05

## What is Water System Logbook?

Water System Logbook is an offline logbook for people who take daily readings at small water systems: wells, treatment, tanks and meters at mobile home parks, RV parks, campgrounds and similar sites.

Set up a site and a round once, then record each day's readings in a few taps. Every round is signed with the operator's name and initials, time-stamped, and kept as a record you can review, correct with an audit trail, chart and share.

RECORD ROUNDS QUICKLY
• Today's rounds show as Due, Overdue or Completed; start the next one with one tap
• Drafts are saved as you go, so an interrupted round can be resumed
• Record Past Round enters earlier readings and shows both observed and entered times
• Readings outside a range you set are flagged "Outside configured range", never blocked

READINGS THAT FIT YOUR SYSTEM
• Start with the Daily Well Check (Free Chlorine, Source Meter, Water Pressure, Pump Hours, notes) or build your own round
• Library: free and total chlorine, pH, turbidity, temperature, meters, flow, pressure, tank level, pump hours, yes/no and pass/fail checks, numeric and text readings
• Custom readings with your own units, optional min and max, and required fields
• Rounds due daily or on chosen weekdays, at your time
• Multiple sites, operators and sample locations
• Values keep the precision you enter: 0.70 stays 0.70

METER USAGE
• Usage is calculated from the previous meter reading, so backdated entries stay consistent
• Mark a meter reset or rollover (such as a replaced meter) and that interval is left out, not guessed

HISTORY
• Browse by month, jump to a date, search, and filter by site, round or operator
• Correct a submitted round with an optional reason; every change is kept in its Edit History
• Deleting a round is recorded in the audit trail
• Each record is shown in the time zone it was recorded in

TRENDS
• Chart numeric readings and meter usage over 30 days, 90 days, 1 year or all time, with your configured range and latest, low, high and average values

REPORTS
• PDF report with page numbers and a header on every page
• Detailed CSV (one row per reading) and Round Summary CSV (one row per round, like a traditional operator spreadsheet)
• Share to Files, Mail, AirDrop or a printer

REMINDERS AND BACKUP
• Optional notifications at each round's due time, skipped when the round is already recorded
• Save a backup file to Files, for example iCloud Drive, and restore it on this iPhone or a new one; a safety copy of current records is saved first

PRIVATE BY DESIGN
• No account, no server, no cloud sync
• No analytics, advertising or tracking
• Records stay on your iPhone unless you share a report or backup
• Recording works offline, and text scales with Dynamic Type

Water System Logbook is a record-keeping tool. It has no built-in limits and doesn't judge whether a reading meets any regulation; the only ranges are the ones you set. Reports are not official forms.

FREE TO START
Your first 7 submitted rounds are free, with every feature included. After that, Water System Logbook Premium, an auto-renewing subscription available monthly or annually, is needed to submit more rounds. Everything you've recorded stays available with or without a subscription: view, correct, export and back up your records any time.

• Payment is charged to your Apple Account at confirmation of purchase.
• The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period.
• Manage or cancel at any time in your Apple Account settings.
• Current prices are shown in the app and on the App Store in your local currency.

Terms of Use: https://gabrielwpetersen.github.io/water-system-logbook/terms/
Privacy Policy: https://gabrielwpetersen.github.io/water-system-logbook/privacy/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Annual | $39.99 | per year |
| Premium Monthly | $4.99 | per month |


## Is Water System Logbook safe?

Not enough ratings yet to assess Water System Logbook.

## Is Water System Logbook legit?

Water System Logbook appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Water System Logbook is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-01

No release notes.

## More apps by Gabriel Petersen

- [Newborn Sleep: Wake Window](https://appshunter.io/ios/app/newborn-sleep-wake-window/id6809217495)
- [Nurse Pay: Shift Calculator](https://appshunter.io/ios/app/nurse-pay-shift-calculator/id6809902280)
- [Mobile Notary Fee Calculator](https://appshunter.io/ios/app/mobile-notary-fee-calculator/id6812381002)
- [FreshScan: Food Expiration](https://appshunter.io/ios/app/freshscan-food-expiration/id6812446608)
- [Self Storage Calculator](https://appshunter.io/ios/app/self-storage-calculator/id6815346288)
- [Buddhism: Daily Dharma](https://appshunter.io/ios/app/buddhism-daily-dharma/id6815788287)

All apps by Gabriel Petersen: https://appshunter.io/developer/6809217497

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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 2026-10-05.*