Comparison

Lottery Stats vs ZZZ Let's Read!

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

Head to head
About

Lottery Stats

This app uses probability-generating algorithms and data analysis to help users generate lottery number combinations. It allows for customization through various filters and displays the probability of selected combinations.

Highlights
  • Probability Generating Algorithms
  • Data analysis based on probability
  • AI extraction
  • Customizable filters (odd/even ratio, hot/cold numbers)
  • Probability display for combinations
  • MegaMillions and PowerBall support
Features
Read full description

Lottery Algorithm is a statistical study workbench for public lottery draw data. Instead of predictions or personal picks, it lets you see every combination that matches your filter criteria as concrete numbers, and compare them against historical draw frequencies. Work directly with the numbers. Set your own criteria, enumerate combination samples, inspect per-number frequencies across past draws, and save filter presets — a study and reference utility for probability statistics. ■ Made for you if... · You want to analyze lottery draw data yourself · You want to visualize probability, combinatorics and the possibility space · You want a combination counter that tells you how many combos match a filter · You want per-number frequency across recent draws in one clear view ■ A typical study flow · Open "Algorithm Filter" from home · Set odd/even 3:3, low/high 3:3, sum 100–175, consecutive pairs max 2 · Watch the matching combination count update instantly as a counter · Tap "View Combinations" to scroll the actual number list · Open "Report" to compare your filter against recent draws as coverage stats · Save as a preset and enable a draw-day reminder ■ Filter types · Odd/even · low/high · sum range · last-digit sum · column sum · Consecutive numbers (pair 1–7) · number spacing · number repeat · Missing draws · AC value · pair distribution · division rank · Include/exclude sets · number range ■ Features · Combination sample enumeration — actual combinations matching your criteria, with total count · AI Statistical Combination Samples (Premium) — advanced algorithm generates study-oriented samples instantly · Historical draw analysis report — how often your filter would have covered past draw numbers, as clear statistics · User opinion aggregate community — browse aggregated opinion statistics for reference · Past results & algorithm reference — filter settings stored alongside verified past results · Draw-day reminder — informational notice the evening before and afternoon of each draw · History management — saved combination samples auto-archived, results viewable in one place · Data visualization — per-number frequency charts, trend graphs, heat maps · 16 languages, auto-detected from device settings Supported lotteries (statistical scope only — no ticket handling): Mega Millions, Powerball (USA), EuroMillions, EuroJackpot (Europe), UK Lotto, Lotto 6/45 (Korea), Loto 6 / Mini Loto / Loto 7 (Japan), Lotto 6/49 & Lotto Max (Canada), Saturday Lotto, Weekday Windfall, Set for Life, Powerball, Oz Lotto (Australia), Mark Six (Hong Kong), Toto (Singapore), Taiwan Lotto & Daily Cash 539, Vietnam games, PCSO 6/42–6/58 (Philippines), Sports Toto Malaysia. ■ Data · Privacy · Free · Historical draws aggregated server-side from official operator sources, refreshed daily · Every statistical study feature works without an account (guest mode) · Saved settings and history live on-device by default (cloud sync only when signed in) · Sign in with Apple / Google is optional — receipt validation and cross-device sync only ■ Ad Removal (optional subscription) Every statistical study feature is free (with ads). Prefer no ads? · Removes interstitial, open, and banner ads · Expands AI Statistical Combination Samples · All study features remain free — no subscription required ※ This app is a probability statistics study and reference tool provided for entertainment and reference purposes only. ※ It does not guarantee lottery winnings and does not purchase lottery tickets on your behalf. Ad-removal subscription is charged to your App Store account. Renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel: Settings > Apple ID > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lottoalgorithm.web.app/legal/privacy_en.html

About

ZZZ Let's Read!

Features
Read full description

ZZZ Let's Read! — On-device OCR for Japanese (vertical, horizontal, classical, kuzushiji) and English Point your camera at a book or a receipt, and get text in an instant. Every byte of OCR runs locally on your device — captured images and recognized text never leave your phone. Ideal for privacy-conscious users and offline environments. ◆ SUPPORTED OCR LANGUAGES AND SCRIPTS ◆ This App recognizes only the following: • Japanese — vertical (tategaki) and horizontal (yokogaki) writing, modern Japanese, classical/pre-modern kanji, and kuzushiji (cursive handwriting). 7,141 characters of the NDLmoji charset. • English — basic Latin alphabet (A–Z / a–z), digits, and common punctuation. Other writing systems are NOT recognized: Simplified/Traditional Chinese, Korean (Hangul), Cyrillic, Arabic, etc. Accented Latin characters (é, ñ, ü, ç, ã, …) are also not in the OCR charset. The app interface is available in 6 languages, but the OCR engine itself supports only Japanese and English. ◆ FEATURES ◆ Document Mode — Books, Manuscripts, Classical Japanese • Powered by the National Diet Library's NDLOCR-Lite • 7,141-character NDLmoji charset including pre-modern Japanese kanji • "Detect" outlines all text regions — tap to OCR only what you need • "Read all" runs OCR on the entire page in one go • Copy or share recognized text • Pinch-to-zoom on the captured snapshot Receipt Mode — Automated Bookkeeping • Auto-extract amount and date from any receipt • Multi-currency: JPY, USD, GBP, EUR, and more • Date formats: Gregorian, Reiwa/Heisei, abbreviated wareki, English month names (e.g. 16AUG2015) • Auto-detects DD/MM vs MM/DD by device locale • Handles European decimal comma (15,65 €) correctly • Bill splitter — divides the amount by N people • Share CSV via Mail / Drive / messenger, or clear with one tap ◆ SIX INTERFACE LANGUAGES ◆ Japanese, English, Chinese, Korean, Spanish, Portuguese. Unsupported locales fall back to English automatically. ◆ PRIVACY BY DESIGN ◆ • Fully offline OCR — no network required for recognition • Captured photos are discarded after OCR; nothing is sent to a server • Only the camera and one CSV file on internal storage are accessed • Network is used solely for ad delivery (Google AdMob) ◆ WHO IT'S FOR ◆ • Students and researchers studying classical Japanese • Writers and editors quoting from physical books • Freelancers, sole proprietors, and households tracking receipts • Travelers logging expenses across multiple countries • Anyone handling confidential documents or working offline ◆ REQUIREMENTS ◆ • iOS 13.0 or higher • ~200 MB free storage • Rear-facing camera • Internet not required for OCR (used only for ads) ◆ OPEN-SOURCE CREDITS ◆ The OCR engine in this App is built on these open-source assets, redistributed under their respective licenses. • National Diet Library NDLOCR-Lite — CC BY 4.0 • PARSeq scene-text recognition model — Apache License 2.0 • PaddlePaddle PP-OCRv4 detection model — Apache License 2.0 The native iOS port (Swift + ONNX Runtime) is the work of this App's developer. ◆ MONTHLY SUBSCRIPTION (REMOVE ADS) ◆ • The "Remove Ads" monthly plan hides all ads in the app • Payment is charged to your Apple ID account • The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period • Your account is charged for renewal within 24 hours prior to the end of the current period • You can manage or cancel anytime in iOS Settings > Apple ID > Subscriptions ◆ TERMS OF USE (EULA) ◆ This App is provided under the following End User License Agreement (EULA). Terms of Use: https://smolt-stage.com/home/privacy/zzz-ocr-terms.html ◆ PRIVACY POLICY ◆ This App handles information in accordance with its privacy policy. For details, see "About" inside the App or the link in this store listing.

Screenshots

Lottery Stats4 screens
ZZZ Let's Read!4 screens

Verdict

The call

The clearest difference is ads: ZZZ Let's Read! at none against Lottery Stats's shown. ZZZ Let's Read! also leads on update cadence (fortnightly vs monthly) and iOS requirement (13.0 vs 15.0). On price, in-app purchases 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. Lottery Stats sells 10 in-app purchases, starting at $3.99 per month and ZZZ Let's Read! sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Lottery Stats ships an update monthly, ZZZ Let's Read! fortnightly. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 7 level
Lottery Stats versus ZZZ Let's Read!: the parameters behind the verdict, then further details
ParameterLottery StatsZZZ Let's Read!
PriceFreeFree
Rating4.5 (61 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings61 — better—
Update frequencyMonthlyFortnightly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size83 MB125 MB
Age rating4+4+
DeveloperSANGWOO YUNSMOLT STAGE, K.K.

In-app purchases

10 purchases

Lottery Stats

Subscriptions1
  • removeAd$3.991 Month
One-time9
  • Premium5$0.99
  • Premium10$1.99
  • Premium15$2.99
Show 6 more
  • Premium10 + 10$2.99
  • Premium20$3.99
  • analyze10$3.99
  • Premium20 + 20$5.99
  • analyze20$7.99
  • analyze40$9.99
1 purchases

ZZZ Let's Read!

Subscriptions1
  • ZZZ Let's Read! Premium$0.991 Month

Questions

Is Lottery Stats free?
Lottery Stats is free to download, with in-app purchases available.
Is ZZZ Let's Read! free?
ZZZ Let's Read! is free to download, with in-app purchases available.
Do Lottery Stats or ZZZ Let's Read! have ads?
Lottery Stats shows ads; ZZZ Let's Read! does not.
Which is updated more often, Lottery Stats or ZZZ Let's Read!?
Lottery Stats ships an update monthly, and ZZZ Let's Read! fortnightly. Most recently, Lottery Stats was updated on October 14, 2026 and ZZZ Let's Read! on October 20, 2026.

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