PlagiarismSearch vs Sumflash
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
PlagiarismSearch
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PlagiarismSearch puts a full plagiarism and AI-detection workflow on your phone. Paste a text, pick a file, or share a document into the app ā and get back a report with a similarity percentage, every matched passage highlighted, and a link to the source it came from. WHAT YOU CAN CHECK ⢠Text you paste or type directly into the app ⢠Documents in popular formats, including PDF, DOC, DOCX, TXT, and RTF ⢠Files shared into PlagiarismSearch from Files, Mail or any other app ⢠Documents you already keep in your personal storage WHERE WE LOOK ⢠The open web ⢠Academic databases built on over 500 million indexed academic texts ⢠Your own storage, so a new draft can be compared against your earlier work ⢠AI-writing analysis that estimates how likely a text was machine-generated, for the whole document and passage by passage REPORTS THAT EXPLAIN THEMSELVES ⢠Overall similarity percentage and total AI rate ⢠Matched passages highlighted and linked to the sources they match ⢠Complete source list showing what each source contributed ⢠Export a report to PDF or send a report link to a colleague or student ⢠Reports you have already opened stay readable when you lose connection TUNE THE CHECK TO YOUR RULES ⢠Leave quotations and reference lists out of the score ⢠Normalise look-alike characters used to disguise copied text ⢠Whitelist or exclude specific domains and pages ⢠Save your preferred settings once and reuse them for every check YOUR DOCUMENT LIBRARY Keep checked documents in folders, reuse them as comparison sources, and find any past report by keyword or by date. TRUSTED BY MORE THAN 500,000 CLIENTS Students check drafts before submitting them. Teachers and editors review what they receive. Researchers keep their citations clean. Most checks finish in about a minute; long documents can take a few minutes more. ACCOUNT AND PAYMENT Sign in with Apple, with Google, or with an email address. Checks are paid for with word packages or with a subscription bought inside the app. The app is available in 16 interface languages. Terms of Use: https://plagiarismsearch.com/terms-of-use Privacy Policy: https://plagiarismsearch.com/policy
Sumflash
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Numbers appear on screen one at a time, each for just a moment. Add them all up in your head and enter the total. This is flash mental math, the way it's practiced with the soroban (Japanese abacus). There are 30 levels, and you practice at the one you choose. - See why you missed After each answer, review every number that flashed along with the running total at that point. Numbers where a carry happened are highlighted, so you can spot exactly where you slipped. Replay the same problem, or replay it slowly. - From 0.2 to 5.0 seconds Set the speed yourself anywhere from 0.2 to 5.0 seconds per number. - 30 levels From 1 digit, 3 numbers, 1 second each, each level changes one thing at a time: more numbers, then faster, then more digits (up to 3 digits, 15 numbers, 0.5 seconds). Change your level anytime from the home screen. Already experienced? Pick a higher starting point on the first launch. - A daily habit Your home screen shows your streak: how many days in a row you've practiced. Miss just one day in a Monday-to-Sunday week and your streak stays alive. One set is five problems and takes just a few minutes. Set a daily reminder at a time you choose (it stays quiet on days you've already practiced). - Five themes ⢠Minimal: thin numbers on white ⢠Washi: Mincho numerals and a red seal ⢠Neon: glowing numbers ⢠Chalkboard: chalk numbers on green ⢠Sakura: rounded numbers on pale pink Your records carry over when you change themes. - For the whole family Each profile keeps its own level, practice days, and records. - Ranked play and leaderboards One digit, ten numbers, a little faster each stage. Your fastest cleared display time goes to Game Center leaderboards (today, this week, all time; global and friends). - Add, subtract, multiply, divide Pick one from the tabs on the home screen. Addition and subtraction (mixed plus and minus) flash numbers one at a time; multiplication and division flash a single expression like "23 à 7". Each has its own 30 levels to choose from. - Read aloud Have numbers read aloud as they flash. - Also ⢠An optional tick sound with each number (plays even in Silent mode; you can turn it off in Settings) ⢠Numbers simply appear and disappear, with no animation getting in the way ⢠Records are stored only on your device (if you're signed in to Game Center, only your best ranked-play time is sent to Apple for the leaderboard) ⢠No sign-in - Premium (auto-renewable subscription) ⢠No ads Monthly subscription. The price is shown in the app and may vary by region. It renews automatically every month and is charged to your Apple ID unless you cancel at least 24 hours before the renewal date. Cancel anytime in iPhone Settings ⺠Apple ID ⺠Subscriptions. Premium only removes ads. Every other feature is free. - About ads Ads appear at the bottom of the home screen and between sets. No ads while numbers are flashing, while you're entering your answer, or while you're reviewing. Premium has no ads. Terms of Use: https://fukuidinotech.github.io/sumflash-lp/en/terms.html Privacy Policy: https://fukuidinotech.github.io/sumflash-lp/en/privacy.html Contact: fukuidinotech@gmail.com
Screenshots
Verdict
The clearest difference is ads: PlagiarismSearch at none against Sumflash's shown. PlagiarismSearch also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. PlagiarismSearch sells 10 one-off in-app purchases and Sumflash sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | PlagiarismSearch | Sumflash |
|---|---|---|
| Price | Free | Free |
| Update frequency | ā | Every 3 days |
| Ads | No ā better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod ā better | iPhone |
| Requires iOS | 15.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 33 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | System Tech Online USA Inc. | Toru Fukui |
In-app purchases
PlagiarismSearch
- Single Check$9.99
- 10-Check Pack$17.99
- Light 90-Day Pass$41.99
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- 50-Check Pack$41.99
- Premium 30-Day Pass$65.99
- Standard 90-Day Pass$77.99
- Premium 90-Day Pass$107.99
- Light 365-Day Pass$137.99
- Standard 365-Day Pass$209.99
- Premium 365-Day Pass$314.99
Sumflash
- Premium (Monthly)$1.991 Month
Questions
Is PlagiarismSearch free?
Is Sumflash free?
Do PlagiarismSearch or Sumflash have ads?
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