SAFEIER vs SpaCheckup
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SAFEIER
Control company-manufactured Bluetooth Low Energy devices using advanced BLE5.0 technology. This app enables seamless interaction with your compatible hardware.
- BLE5.0 transmission technology
- Control company-manufactured devices
- Seamless hardware interaction
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This is an application that facilitates the control of various Bluetooth Low Energy (BLE) devices, manufactured by our company, via the advanced BLE5.0 transmission technology.
SpaCheckup
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SpaCheckup turns your hot tub or spa test strip readings into exact chemical doses in seconds — no math, no guesswork, no chemistry degree required. HOW IT WORKS 1. Dip a test strip — any standard strip works (AquaChek, Taylor, or whatever came with your spa). 2. Enter your readings — pH, sanitizer, total alkalinity, and calcium hardness. Clear steppers and target ranges show exactly where each number stands. 3. Add exactly what it says — get precise doses in ounces, teaspoons, or grams, calculated for your spa's exact volume and sanitizer type, with the reason for each adjustment. FEATURES • Exact chemical doses — not "add some pH down," but the precise amount for your spa's volume, down to the fraction of an ounce, with the reason why. • Full support for chlorine and bromine sanitizer systems, including bromine bank establishment and shock guidance. • Smart local reminders for water testing, shock treatments, filter rinses, and drain & refill — on the schedule you choose. • Complete treatment history and trends, so you can see exactly how your water has tracked across the season. • A calm, glassy dark mode for late-night soaks. • Private by design — no account, no cloud, no tracking. Every reading stays on your device. BUILT FOR REAL HOT TUB OWNERS Whether you just filled your first spa and don't know where to start, you're troubleshooting cloudy water, or you're a seasoned owner who wants to skip the mental math, SpaCheckup meets you where you are. SIMPLE PRICING SpaCheckup is free to download and use for water testing. Unlock reminders and full history with a one-time purchase — no subscription, no ads, ever.
Screenshots
Verdict
The clearest difference is in-app purchases: SAFEIER at none against SpaCheckup's 1. SAFEIER also leads on update cadence (every 2 weeks vs monthly) and iOS requirement (13.0 vs 16.4). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SpaCheckup sells 1 one-off in-app purchase. SAFEIER asks for nothing beyond the download.
SAFEIER ships an update every 2 weeks, SpaCheckup monthly. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.
| Parameter | SAFEIER | SpaCheckup |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (28 ratings) — better | — |
| Positive reviews | 22.2% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 54 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | ShenZhen luona technology Co. LTD | Inception Apps Limited Liability Company |
In-app purchases
SAFEIER
No in-app purchases
SpaCheckup
- Unlock Everything$4.99
