Comparison

Num Trainer vs Audio Dubbing

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

Head to head
About

Num Trainer

Enhance your cognitive abilities with focused games designed to improve attention, memory, reaction speed, mental math, and logic. Track your progress with detailed history charts and compete globally on leaderboards. Enjoy a clean, distraction-free experience with no ads or in-app purchases.

Highlights
  • Mental Math training
  • Number Pair memory games
  • Tap in Order challenges
  • Digit-by-Digit Math
  • Progress tracking
  • Global leaderboards
Read full description

Num Trainer is a brain training app for faster number skills. Four focused games build attention, memory, reaction speed, mental math and logic in short sessions you can fit into any day. NEW: GLOBAL LEADERBOARDS Sign in to Game Center and your fastest times are ranked worldwide. There is a leaderboard for every game and every difficulty, so you always compete on equal rules. Not signed in? Everything still works and your records stay on your device. FOUR TRAINING GAMES • Mental Math – solve addition, subtraction, multiplication and division against the clock, from Beginner to Expert. • Number Pairs – memorise card positions and match every identical pair. • Tap in Order – a Schulte-table style challenge: find and tap numbers from smallest to largest as fast as you can. • Digit-by-Digit Math – remember a number, then transform each digit with the same step. TRACK YOUR PROGRESS Training History charts your latest, best and median time for every game and difficulty. Open the record list to review each session and the exact settings you played. SIMPLE AND FOCUSED Clean, distraction-free design, light and dark appearance, English, Simplified Chinese, Spanish and Japanese. No ads, no in-app purchases and no account required.

About

Audio Dubbing

This app helps users learn English effectively through a subscription-based service. It offers various subscription periods, including monthly, half-yearly, and annual plans, with auto-renewal options.

Highlights
  • Effective English learning
  • Auto-renewal subscriptions
  • Monthly, half-yearly, and annual plans
  • Privacy terms available
  • Supports iPhone, iPad, iPod
Features
Read full description

It can help you learn English effectively. 【Auto-Renewal Subscription】 - Subscription periods: monthly, half-yearly or annually. -The auto-renewal service applies prior to the expiration of an active subscription. By enabling auto-renewal, within 24-hours prior to the end of the current subscription period, payment of the same subscription will be automatically deducted from your iTunes account. The exact payment amount corresponds to the following subscription periods: monthly, half-yearly or annually. -Auto-Renewable Subscriptions protocol: https://damonchen117.github.io/diandubi/protocolEN.txt -Privacy Terms: https://damonchen117.github.io/diandubi/privacy.txt

Screenshots

Num Trainer4 screens
Audio Dubbing2 screens

Verdict

The call

The clearest difference is review sentiment: Num Trainer at 100% against Audio Dubbing's 30%. Num Trainer also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 3). Audio Dubbing's advantage is iOS requirement (14.0 vs 18.0). On price, ratings volume, 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. Audio Dubbing sells 3 in-app purchases, starting at $1.99 per month. Num Trainer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Num Trainer holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of Num Trainer's written reviews are positive against 30% of Audio Dubbing's.

UpkeepUpdate frequency

Num Trainer ships an update every 9 days, Audio Dubbing monthly. Both last shipped on November 3, 2026.

Scorecard6 real differences · 4 level
Num Trainer versus Audio Dubbing: the parameters behind the verdict, then further details
ParameterNum TrainerAudio Dubbing
PriceFreeFree
Rating5.0 (2 ratings) — better3.0 (1 ratings)
Positive reviews100.0% of reviews — better30.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 9 days — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.014.0 — better
Further details — not scored
Size2 MB127 MB
Age rating4+4+
DeveloperYang Wang继岭 陈

Customer experience

Num Trainer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Audio Dubbing

Written reviews20 reviews
Positive30.0%
Neutral20.0%
Negative50.0%

In-app purchases

None

Num Trainer

No in-app purchases

3 purchases

Audio Dubbing

Subscriptions3
  • VIP 1 Month$1.991 Month
  • VIP 6 Months$3.996 Months
  • VIP 1 Year$6.991 Year

Questions

Is Num Trainer free?
Num Trainer is free to download, with no in-app purchases.
Is Audio Dubbing free?
Audio Dubbing is free to download, with in-app purchases available.
Which has better reviews, Num Trainer or Audio Dubbing?
Num Trainer is rated higher. Num Trainer averages 5.0 out of 5 from 2 ratings, while Audio Dubbing averages 3.0 from 1 ratings.
Do Num Trainer or Audio Dubbing have ads?
Neither Num Trainer nor Audio Dubbing shows ads.
Which is updated more often, Num Trainer or Audio Dubbing?
Num Trainer ships an update every 9 days, and Audio Dubbing monthly. Most recently, Num Trainer was updated on November 3, 2026 and Audio Dubbing on November 3, 2026.

Other comparisons