Body Temperature Memo vs NightRing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Body Temperature Memo
Easily record and track body temperature readings from your thermometer. Visualize trends with graphs and a calendar view, and add notes for medical conditions or appointments. Supports multiple profiles for family members.
- Record body temperature easily
- Calendar view for temperature changes
- Daily average temperature display
- Graph visualization
- Multiple user profiles
- Text memo function
- Supports second decimal place
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A simple body temperature recording app that can be used easily. You can smoothly record the result of temperature measurement with a thermometer. [Main functions] - Record body temperature in a few steps - Vertical calendar format makes it easy to see changes - Displays the average daily body temperature - With graph display - Up to 3 data can be switched and used, so you can record the temperature of your child and family. - Has text memo function! It is convenient for recording medical conditions such as headaches and sore throats and appointments for hospital visits. The average value, graph, and memo can be displayed or hidden separately. It can be used to record basal body temperature as it corresponds to the second decimal place. Precautions This app does not measure your body temperature like a thermometer. It is an application to record and manage the results of temperature check with a thermometer.
NightRing
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"When did I fall asleep last night?" — NightDial answers the moment you open it. It reads the sleep data your Apple Watch or iPhone already saves to Health, and draws each night as an arc on a 24-hour dial. Zero input required. Just sleep like you always do. ■ Sleep Rings Sleep that crosses midnight stays whole on a circle. Bedtime to wake-up, one arc, one glance. ■ A calendar of rings One ring per day, a month at a time. Aligned arcs mean a steady rhythm — the messy nights stand out instantly. ■ Sleep Score Duration, rhythm, continuity, and timing — scored every morning, with the full breakdown visible. You'll know exactly what to fix. ■ Today's Note One piece of advice a day, picked for your recent sleep pattern from thousands of pre-written insights. ■ Night Vitals (Apple Watch) Heart rate, respiratory rate, blood oxygen and more, shown alongside each night. ■ Social Jet Lag See exactly how far your weekends drift from your weekdays — in minutes. Now you know why Mondays hurt. ■ Privacy Your sleep data is processed entirely on your device and never leaves it. ―――――――――― NightDial Plus (subscription) ―――――――――― The free version fully covers your last 14 days, plus today's score and advice. With Plus you get: - Your entire history, as far back as it goes - Trend charts: bedtime, wake time, score, nightly heart rate - Detailed weekday vs. weekend analysis - No ads Pricing: $0.99/month, $6.99/year (with 7-day free trial), or $16.99 lifetime. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kakovail.info/privacy/ * Requires sleep data in Apple Health (from Apple Watch, or iPhone with a sleep schedule). * NightDial shows rhythm insights only and does not provide medical evaluation or advice.
Screenshots
Verdict
The clearest difference is in-app purchases: Body Temperature Memo at none against NightRing's 6. Body Temperature Memo also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). NightRing's advantage is update cadence (every 6 weeks vs every 3 months). On price and ads 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. NightRing sells 6 in-app purchases, starting at $1.49 per month. Body Temperature Memo asks for nothing beyond the download.
Body Temperature Memo ships an update every 3 months, NightRing every 6 weeks. The most recent releases landed on October 29, 2026 and November 1, 2026 respectively.
| Parameter | Body Temperature Memo | NightRing |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 42 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Shigeo Fukuda | Hiroyuki Kako |
In-app purchases
Body Temperature Memo
No in-app purchases
NightRing
- Plus Monthly$1.491 Month
- Plus Yearly7 Days trial$11.991 Year
- Coffee$2.99
- Good Burger$9.99
- Plus Lifetime$24.99
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- Dinner$29.99
Questions
Is Body Temperature Memo free?
Is NightRing free?
Do Body Temperature Memo or NightRing have ads?
Which is updated more often, Body Temperature Memo or NightRing?
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