Comparison

VOF Solver vs Keepy

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

Head to head
About

VOF Solver

This app assists players in the Voltorb Flip mini-game within Pokémon HeartGold and SoulSilver. It calculates optimal moves to minimize risk and maximize rewards by analyzing row and column sums.

Highlights
  • Set row and column sums
  • Displays progress and solutions
  • Real-time risk assessment
  • Color-coded risk indicators
  • Filters and updates risk levels
  • Optimized for speed and memory
Features
Read full description

VOF Solver finds solutions for the voltorb flip game of pokemon heartgold and soulsilver and helps chosing the cell with the lowest risk of losing the game. Features: o Set the sums of coins and orbs for the rows and columns o Shows progress and the number of solutions found so far o Stop the search any time if you like o Quickly browse through the solutions o Cells are colored: green for low risk, red for high risk o Filters solutions and updates risk colors: Set the cell's coins in the solution matrix as you flip the cells in the actual game o Optimized for speed and memory usage o Small app size for quick download o Create sample data to quickly test the app

About

Keepy

Securely hide your photos, videos, and files with a fully offline vault. Create multiple PIN-protected vaults, including fake ones, to keep your personal content private on your device. Your data is never collected, synced, or backed up.

Highlights
  • Multiple PIN-protected vaults
  • Fully offline local storage
  • Hide photos, videos, and files
  • Fake vaults for added privacy
  • Smart export to ZIP archive
  • Activity log for access attempts
Features
Read full description

Keepy gives your private photos, videos and documents a separate home on your iPhone. START WITH YOUR FIRST FILE Create your PIN and open your vault. Add photos, videos or documents, organize them into albums and return to your saved collection whenever you need it. Viewing saved files works offline. CAREFUL IMPORTS Keepy checks that a copy was written and its record saved before offering to remove the original from Photos. Import results show what succeeded and what needs another attempt. Removing originals is your choice. BACK UP AND RESTORE Create a ZIP backup of your photos, videos, documents and albums. Password protection is enabled by default, and Keepy verifies the archive before sharing. Restore a Keepy backup into a vault while keeping existing files. Store the archive outside Keepy and keep its password somewhere safe. PINs, browser sessions and settings are not included. SEPARATE VAULTS Use different PINs for separate collections. Add as many optional decoy vaults as you like, and let any vault ask for its PIN more than once. Every vault has the same screens and settings. Choose another app icon for your Home Screen. These features offer discretion, but they cannot guarantee protection against inspection or coercion. MORE WAYS TO USE YOUR VAULT Browse with a separate web session for each vault, open Telegram or WhatsApp web sessions, and use on-device photo enhancement. Online services require an internet connection and follow their own privacy policies. FREE AND PAID OPTIONS Start with a free vault with import limits and advertising. Paid plans offer larger or unlimited allowances and remove ads. Unlimited storage is limited by your iPhone's free space. Everything you added before version 1.11 always stays accessible. Without an active plan, your newest items within the free limits stay open. Other items are locked but kept, can be deleted at any time, and are always included in Keepy backups. PRIVACY AND RECOVERY Vault files stay in Keepy's storage unless you choose to share, export or upload them. iOS Data Protection protects files on the device. The vault PIN is an app lock, not a file-encryption key. Keepy uses analytics and ads, with controls in Vault settings. There is no automatic cloud recovery and no forgotten-PIN reset. Back up before deleting the app or replacing your phone. SUBSCRIPTIONS Available plans, localized prices and any eligible free trial are shown before purchase. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in your Apple Account subscription settings. Free trials are available only to eligible accounts for the selected plan. Privacy Policy: https://docs.google.com/document/d/1NSpEbQ0tQonz3aoE9IbBnotmCi5fDEuWpKf8jfQ3tPY/edit Terms of Use: https://docs.google.com/document/d/1eSWdt6XhPf0BWB7EiV3K-D659tROB5aEAXM99AgLLNE/edit

Screenshots

VOF Solver2 screens
Keepy4 screens

Verdict

The call

The clearest difference is price: Keepy at Free against VOF Solver's $0.99. Keepy also leads on review sentiment (100% vs 57%) and rating (4.8 vs 3.5). VOF Solver's advantage is in-app purchases (none vs 5) and ads (none vs shown). On 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

Keepy is free to download; VOF Solver costs $0.99 up front. Keepy sells 5 in-app purchases, starting at $1.99 per month. VOF Solver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Keepy holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: Keepy has 48 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 57% of VOF Solver's written reviews are positive against 100% of Keepy's.

UpkeepUpdate frequency

VOF Solver ships an update every 36 months, Keepy every 2 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard9 real differences · 1 level
VOF Solver versus Keepy: the parameters behind the verdict, then further details
ParameterVOF SolverKeepy
Price$0.99Free — better
Rating3.5 (4 ratings)4.8 (48 ratings) — better
Positive reviews57.1% of reviews100.0% of reviews — better
Number of ratings448 — better
Update frequencyEvery 36 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better17.6
Further details — not scored
Size1 MB111 MB
Age rating4+4+
DeveloperadmaDIC Rainer Schwarze & Annett Schwarze GbRRoman Savenok

Customer experience

VOF Solver

All ratings4 ratings
Positive25.0%
Neutral75.0%
Negative0.0%
Written reviews7 reviews
Positive57.1%
Neutral28.6%
Negative14.3%

Keepy

All ratings48 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

VOF Solver

No in-app purchases

5 purchases

Keepy

Subscriptions5
  • Medium Vault$1.991 Month
  • Unlimited Vault$3.991 Month
  • Unlimited Vault for a week$4.997 Days
Show 2 more
  • Weekly Vault7 Days trial$4.997 Days
  • Yearly Subscription$24.991 Year

Questions

Is VOF Solver free?
VOF Solver costs $0.99, with no in-app purchases.
Is Keepy free?
Keepy is free to download, with in-app purchases available.
Which has better reviews, VOF Solver or Keepy?
Keepy is rated higher. VOF Solver averages 3.5 out of 5 from 4 ratings, while Keepy averages 4.8 from 48 ratings.
Do VOF Solver or Keepy have ads?
Keepy shows ads; VOF Solver does not.
Which is updated more often, VOF Solver or Keepy?
VOF Solver ships an update every 36 months, and Keepy every 2 weeks. Most recently, VOF Solver was updated on October 23, 2026 and Keepy on October 25, 2026.

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