Comparison

SUDOKUSHORTS vs u

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

Head to head
About

SUDOKUSHORTS

Features
Read full description

Tired of guessing when solving a hard sudoku? Demystify and savvy the compelling techniques that solve non-trivial sudokus. In any diabolic Sudoku there comes a point, where you have to guess OR... ...apply an advanced solving technique. Advanced solving techniques, like y-wings or x-chains, generally do not reveal the correct solution of one particular Sudoku cell, but rather eliminate potential candidates. SUDOKUSHORTS gives you UNLIMITED practice tasks to understand the logic of more than 30 state-of-the-art strategies and how they are applied. Each task is a snapshot of an arduous Sudoku, meaning you do not need to unravel the full Sudoku puzzle, but only THE ONE PARTICULAR STEP, that requires exceptional solving skills. This approach significantly increases the success of learning and the satisfaction of achievement for two reasons: No time wasted finding trivial cell solutions. Focus on ONE particular technique at a time. You can practice, practice, practice whenever you want, in small bites, effectively and efficiently. Each test covers ONE technique and each test has ONE solution. In each of the mindboggling challenges, you may either find all candidates that can be eliminated (SUCCESS) or only some of them (PARTIAL SUCCESS) or you fail (ERROR). In the latter case you may just try the next exercise. Once you feel comfortable with the specifics of one approach you may choose the next routine. For each challenge the full solution can be displayed by tapping the “SHOW”-Button. Moreover, each task comes with its tailor-made, fully animated tutorial, giving you the opportunity to learn and understand the logic of the technique and the way the technique is applied and to find out the candidates that can be eliminated with this technique. Each tutorial covers and explains the CURRENT task you are trying solve, not just a generic example. SUDOKUSHORTS does NOT bother you with any ADS and does NOT annoy you with any IN-APP-PURCHASES or SUBSCRIPTIONS. SUDOKUSHORTS can be played OFFLINE, whenever and wherever you want, all tasks are directly created on your device. Therefore, also, NO kind of any data, in particular your personal data, are required or asked for or submitted. SUDOKUSHORTS makes cracking the cryptic easy. SUDOKUSHORTS distinguishes by very easy game rules: Select a technique and you will be shown a partially solved Sudoku, with some cells displaying the final solution, some other cells displaying the possible candidates and – in some cases – some cells being fully empty. The situation is equivalent to a player’s progress, who gets stuck right at the point, where only a progressive procedure will enable continuation without guessing. Analyze the situation and once you find a candidate that can be eliminated, tap the respective cell which consequently magnifies its content. Then, you optionally may highlight the color of the cell, the color of one or more candidates or mark a to-be-eliminated candidate with a cross. Once you’ve found all candidates that are to be eliminated, tap the ‘CHECK’-Button, and the full solution is displayed. SUDOKU SHORTS deliberately does not show a game clock. Take your time to understand how to apply advanced techniques. SUDOKU SHORTS covers the most frequent and also more rarely used advanced solving techniques: SUBSETS: - Naked Pair - Naked Triple - Naked Quad - Hidden Pair - Hidden Triple - Hidden Quad LINES: - Line Box - Box Line WINGS: - Y-Wing - XYZ-Wing - X-Wing - W-Wing - extended W-Wing - Sue de Coq (Type 1 and 2) - WXYZ-Wing CHAINS: - Remote Pair - Turbot - XY-Chain (exclusion, loop) - extended XY-Chain (exclusion, loop) - X-Chain (exclusion, loop, contradiction loop) - Alternating Interference Chain (exclusion, loop, in-cell elimination, discontinuous loop) FISH: - X-Wing - Swordfish UNIQUES: - Bi-Value-Grave - Unique Rectangle (one cell, one digit, one pair, one strong link)

About

u

Engage in dynamic medical simulations powered by AI. Input a complaint or topic to generate a realistic patient scenario. Practice diagnostic and treatment skills with interactive feedback and learning resources.

Highlights
  • AI-generated dynamic simulation scenarios
  • Interactive patient case progression
  • Request diagnostic tests and consultations
  • Detailed feedback and learning points
  • On-demand medical training
Features
Read full description

ON-DEMAND MEDICAL SIMULATIONS Introducing u-sim, the first AI-based app for medical simulation. Simply enter a complaint or topic, and u-sim builds a dynamic simulation scenario. GIVE A TOPIC, GET A SCENARIO, CHAT YOUR PLAN - Use the case stem to guide your approach. - Ask for more information such as additional history or reports from bystanders, family, or EMS. - Perform a physical exam or begin interventions required to stabilize your patient. - Your patient's condition responds to the actions you take. COMPREHENSIVE DIAGNOSTIC TOOLS - Request laboratory tests, imaging, and specialist consultations. - The case concludes once you've identified the correct diagnosis and disposition. DETAILED FEEDBACK AND LEARNING - Receive a detailed report with feedback on critical actions and learning points including references to related content DISCLAIMER - Please not that u-sim provides only simulated content, none of the scenarios, related data or any information provided by the application is intended to represent real health data or to suggest any recommendations for treatment of any medical condition. - Do not use u-sim if you are not a healthcare learner. - u-sim does provide any medical advice. LICENSING AGREEMENT - https://u-sim.org/terms

Screenshots

SUDOKUSHORTS4 screens
u3 screens

Verdict

The call

The clearest difference is price: u at Free against SUDOKUSHORTS's $1.99. u also leads on update cadence (every 3 weeks vs every 12 months). SUDOKUSHORTS's advantage is in-app purchases (none vs 2) and iOS requirement (9.0 vs 16.4). On 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

u is free to download; SUDOKUSHORTS costs $1.99 up front. u sells 2 in-app purchases, starting at $12.99 per month. SUDOKUSHORTS asks for nothing beyond the download.

UpkeepUpdate frequency

SUDOKUSHORTS ships an update every 12 months, u every 3 weeks. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

Scorecard4 real differences · 5 level
SUDOKUSHORTS versus u: the parameters behind the verdict, then further details
ParameterSUDOKUSHORTSu
Price$1.99Free — better
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 12 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.4
Further details — not scored
Size59 MB100 MB
Age rating4+17+
DeveloperJutta SchindlerTom Fadial

In-app purchases

None

SUDOKUSHORTS

No in-app purchases

2 purchases

u

Subscriptions1
  • Monthly$12.991 Month
One-time1
  • 20 Pack$29.99

Questions

Is SUDOKUSHORTS free?
SUDOKUSHORTS costs $1.99, with no in-app purchases.
Is u free?
u is free to download, with in-app purchases available.
Do SUDOKUSHORTS or u have ads?
Neither SUDOKUSHORTS nor u shows ads.
Which is updated more often, SUDOKUSHORTS or u?
SUDOKUSHORTS ships an update every 12 months, and u every 3 weeks. Most recently, SUDOKUSHORTS was updated on September 10, 2026 and u on September 15, 2026.

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