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54
BU Score
Solid

UltraTrainer

3.9 ✍️ Editor
✍️ bumetric analysis

UltraTrainer is an iOS app from Plain and Simple Software in the Health & Fitness category, currently rated 3.9★ across 9 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Our BU Score puts it at 54: 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

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Reviews
Forecast Revenue / mo
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💰 Forecast Revenue / mo

MODEL
Revenue 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 9 of 9 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
bugsREVIEW
−$1,800
5 starREVIEW
+$1,800
great valueREVIEW
+$1,600
excellent appREVIEW
+$1,500
Mature app (16y old)METRIC
+$1,500
highly recommendREVIEW
+$1,400
Single-language (English only)METRIC
−$400
Pre-traction phase (9 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 21 MB🔞 4+📱 iOS 8.0+🔖 v7.5🔄 updated 8y ago🌐 EN📂 Health & Fitness💰 Paid🚀 Launched 2009 (16y old)

📝 About this app

Description

UltraTrainer is your virtual coach, trainer, and training partner. It is a revolutionary timer which was not available previously on any mobile device.

There are two types of intervals which can be mixed in UltraTrainer:
- Traditional Intervals
- Randomized Action Intervals

In a traditional interval, the interval is a specified duration. This is what you would normally expect from an interval timer. Routines such as Tabata, HIIT, etc, are incredibly easy to setup and modify.

The Randomized Action Intervals is where UltraTrainer truly breaks new ground. UltraTrainer will call out Actions for you to perform in random order AND at random times that you control.

For example, if you are shadow boxing or hitting the heavy bag, you would normally think of a combination of punches and throw them. Instead of consciously coming up with the combination, UltraTrainer can tell you what punches to throw. It can call out 'JAB!', then a second later 'JAB CROSS!', then a second and a half later, 'CROSS HOOK!', until the interval ends.

This is how UltraTrainer can be your virtual coach/trainer/training-partner: you can not train reactionary reflexes without somebody or something telling you what to do in random order and at random times.

Martial artists can work on reflexes by creating timers that randomize movement ("Forward!", "Backwards!") and actions ("Sprawl!").

Cyclists can simulate mountain road courses by setting up intervals that randomize pedaling speed.

Crossfit athletes make HEAVY use of timers for quick high-intensity workouts. The sample timer "Fight Gone Horribly Wrong" is based on "Fight Gone Bad" but with a twist. Each of the 5 stations is called out in random order and the duration at each station is randomized between 20 seconds and 1 minute. The result? A franticly paced workout because you never REALLY know when the next station will be called out so you have to try to completely exert yourself at the current station.

For a complete workout, you can set up a Timer Group which will play individual timers back to back. Start out with your favorite Warm Up timer, then run through your favorite Training timer, and end with a Stretching timer. UltraTrainer will run you through your full workout automatically.

Exclusive to our products, users can browse the Timer Exchange, a community where people freely exchange timers. Search, browse, and download timers that other users have uploaded. If you want, you can upload your own timers to share with others.

You can also trade timers directly with a friend using E-mail, or the clipboard to transfer them other ways.

UltraTrainer can be used for martial arts, mma, boxing, bjj, circuit training, interval training (Tabata, HIIT), Crossfit, yoga, meditation, cycling, running / sprinting, swimming, time-management, multi-stage recipes for cooking, weight lifting, stretching, and anything else you might be able to think of. As you can see, UltraTrainer can be used in all sorts of situations.

Features in UltraTrainer:
- Timer Exchange community
- Runs in the background
- Random interval actions
- Copy/Paste Intervals and Actions
- Rearrange intervals
- Delayed start time
- Over 70 included sounds
- Record your own sounds
- Large portrait or landscape countdown timer display
- Help system explains each option on the current screen
- iPod music playback control lets you pause/play the current track or move to the next track from the countdown timer screen
- Pause the timer to temporarily halt the activity
- Timer state is saved if interrupted
- Will still run if screen is locked
- Intuitive setup

🆕 What's New · v7.5

This update from Apple will improve the functionality of this app. No new features are included.

Fixed crash issue when recording custom sounds in iOS 10/11

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
UltraTrainer
Developer
Plain and Simple Software
Bundle ID
com.plainandsimplesoftware.UltraTrainer
App Store URL
Open in App Store
Category
Health & Fitness
Content rating
4+
Languages
EN

Company

Website
www.plainandsimplesoftware.com
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$25.9K/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
Not found
LinkedIn
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
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
📈Ratings growth9 ratings+800% lifetimeShow 3-year history estimate ▾Dec 2009Nov 2017May 2026
Tracked (50 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.

More by Plain and Simple Software

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Full revenue analysis
Read the article-style breakdown for UltraTrainer: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →