Comparison

Doomersion vs Quantrack

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Doomersion

Learn languages through immersive video content that adapts to your skill level. As you scroll through short clips, the difficulty gradually increases, mirroring natural language acquisition methods.

Highlights
  • Immersive video learning
  • Adaptive difficulty
  • Level-matched content
  • Natural language acquisition
  • Scroll-based progression
Features
Read full description

Doomersion (formerly Doomlingo) lets you watch short videos in your target language that are exactly matched to your level, and then as you scroll they get a little harder so you learn! That way you can learn languages by immersion, which is how people actually learn!

About

Quantrack

This app provides focused drills for mental math, essential for quant and prop-trading interviews. It features a custom number pad for speed, tracks accuracy and progress, and offers daily streaks to build a consistent practice habit.

Highlights
  • Eight core math modes
  • Custom number pad for fast entry
  • Instant feedback and haptics
  • Accuracy and speed tracking
  • Daily streaks and progress stats
  • Quant interview specific modes (Pro)
Features
Read full description

Quantrack is a mental-math drill app for anyone preparing for quant and prop-trading interviews. Every session is a sprint: a big prompt, a custom number pad, and the clock running. Fast, focused, no fluff. TRAIN THE MATH INTERVIEWS TEST Work through eight core modes, free: • Addition • Subtraction • Multiplication • Division • Fractions • Percentages • Decimals • Mixed BUILT FOR SPEED • A custom number pad designed for rapid entry, with no default keyboard • Instant feedback and haptics on every answer • Accuracy and speed tracked for every session BUILD THE HABIT • Daily streaks that reward showing up • Personal stats and progress by mode GO FURTHER WITH QUANTRACK PRO • Endless questions in every mode, with no 100-question cap • Seven quant interview modes: Probability, Expected Value, Log / Exp, Bid–Ask, Options Intuition, Bayesian, and Sequence Patterns https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Doomersion4 screens
Quantrack3 screens

Verdict

The call

The clearest difference is rating: Quantrack at 5.0 against Doomersion's 4.2. Quantrack also leads on update cadence (every 2 days vs every 2 weeks). Doomersion's advantage is in-app purchases (none vs 2) and ratings volume (86 vs 1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Quantrack sells 2 in-app purchases, starting at $7.99 per month. Doomersion asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Quantrack holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Doomersion has 86 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Doomersion ships an update every 2 weeks, Quantrack every 2 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Doomersion versus Quantrack: the parameters behind the verdict, then further details
ParameterDoomersionQuantrack
PriceFreeFree
Rating4.2 (86 ratings)5.0 (1 ratings) — better
Positive reviews69.4% of reviews—
Number of ratings86 — better1
Update frequencyEvery 2 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPod — betteriPhone
Requires iOS15.5 — better17.0
Further details — not scored
Size89 MB2 MB
Age rating12+4+
DeveloperMostafa Tamer AfrALTON BANUSHI

Customer experience

Doomersion

All ratings85 ratings
Positive75.3%
Neutral9.4%
Negative15.3%
Written reviews72 reviews
Positive69.4%
Neutral15.3%
Negative15.3%

Quantrack

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Doomersion

No in-app purchases

2 purchases

Quantrack

Subscriptions2
  • Quantrack Pro Monthly$7.991 Month
  • Quantrack Pro Yearly$39.991 Year

Questions

Is Doomersion free?
Doomersion is free to download, with no in-app purchases.
Is Quantrack free?
Quantrack is free to download, with in-app purchases available.
Which has better reviews, Doomersion or Quantrack?
Quantrack is rated higher. Doomersion averages 4.2 out of 5 from 86 ratings, while Quantrack averages 5.0 from 1 ratings.
Do Doomersion or Quantrack have ads?
Neither Doomersion nor Quantrack shows ads.
Which is updated more often, Doomersion or Quantrack?
Doomersion ships an update every 2 weeks, and Quantrack every 2 days. Most recently, Doomersion was updated on October 28, 2026 and Quantrack on October 29, 2026.

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