60
BU Score
Solid
HotLog - Saunatagebuch
✍️ BU Analytics Review
“
HotLog - Saunatagebuch is an iOS app from Thomas Dori in the Health & Fitness category, currently rated 4.6★ across 501 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Our BU Score puts it at 60 — Solid (established niche player). For a Health & Fitness app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.6★)METRIC | +$2,200 | |
| Established app (7y old)METRIC | +$800 | |
| Early-stage install base (501 ratings)METRIC | +$400 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Oct 24
Dec 24
Jan 25
May 25
Jul 25
Sep 25
Nov 25
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 18 MB🔞 4+📱 iOS 18.0+🔖 v1.6🔄 updated 4mo ago🌐 EN, DE📂 Health & Fitness💰 Paid🚀 Launched 2018 (7y old)
📝 About this app
Nothing better than sitting naked in a hot and humid room with strangers just to sweat like you never thought you could. Visiting the sauna, steam bath, or infrared room is not only relaxing but can also have health benefits.
HotLog is your digital companion to tracking your sauna, steam bath, and infrared sessions. HotLog allows you to easily capture all the important details of your sessions like:
- Sauna Type
- Temperature
- Humidity
- Duration
- Aufguss
- Cold Shower / Plunge
HotLog also gives you insights into your sauna habits by appealing statistics so you can see whether you sweat as often as you would like to.
If you want to, HotLog tracks all your sessions as workouts in Apple Health.
HotLog is your digital companion to tracking your sauna, steam bath, and infrared sessions. HotLog allows you to easily capture all the important details of your sessions like:
- Sauna Type
- Temperature
- Humidity
- Duration
- Aufguss
- Cold Shower / Plunge
HotLog also gives you insights into your sauna habits by appealing statistics so you can see whether you sweat as often as you would like to.
If you want to, HotLog tracks all your sessions as workouts in Apple Health.
🆕 What's New · v1.6
Finally adjusted the UI to iOS 26 and fixed some warnings and bugs under the hood.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- HotLog - Saunatagebuch
- Developer
- Thomas Dori
- Bundle ID
- app.hotlog
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- EN, DE
Company
- Website
- hotlog.app
- Tagline
- Track It When It’s Hot
- Description
- Track your sessions in the sauna, steam bath, infrared sauna, hammam, or any other hot room. HotLog will then give you insights into your habits.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $201/mo
- Top-grossing rank
- Outside top 100 in US Health & Fitness
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- https://twitter.com/laukkanenjari
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- facebook · twitter · youtube
- Not found
- Phone
- Not found
- Contact page
- https://hotlog.app/support/
- About page
- Not found
📈Ratings growth501 ratings+50000% lifetimeShow 3-year history estimate ▾
Tracked (33 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
