Comparison

FastSync vs iSpacekeeper

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

Head to head
About

FastSync

Features
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【FastSync】 is a file transfer tool for quickly sharing large files across devices and teams. It brings secure sharing and clear progress so every transfer stays under control. **Quick Transfer Setup** Pick files or photos, add recipients and a short note, and create a transfer in just a few steps. **Reliable Background Uploads** Resume interrupted uploads with retry support, and keep transfers running even when the screen is locked. **Link and QR Sharing** Generate shareable links and QR codes, with optional password, expiration time, and download limits. **Inbox and History** Manage received files and past transfers in one place, with status updates, receipts, and audit logs. Make large-file sharing clearer and more controllable. Download and try it now. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://wgpwork.xyz/wenjianchuanshu/privacy.html

About

iSpacekeeper

Features
Read full description

iSpaceKeeper – Mobile Phone Storage Manager App Introduction iSpaceKeeper is a practical utility app focused on photo, video, and file management. It helps you free up storage, organize files, and protect your privacy with a clean and easy-to-use interface. With SpaceKeeper, you can quickly analyze storage usage, compress media files, securely manage private content, and check your device statusβ€”all in one place. Key Features Smart Scan Quickly analyzes photos, videos, and files to show you exactly how your storage is being used. Image Compression Reduce photo size while keeping good image quality, helping you save space effortlessly. Video Compression Multiple compression modes available to shrink video file sizes while balancing clarity. GIF Compression Optimize GIF file sizes for easier sharing and smoother saving. Live Photo to Still Image Convert Live Photos into static images for easier management and export. File Safe (Private Vault) Protect private photos and videos with a password lock or Face ID, ensuring your personal content stays secure. Device Health Center View detailed device information including storage status, battery level, network status, and system performance. Toolbox A collection of handy utilities to help you manage phone content more efficiently. Privacy Protection At SpaceKeeper, your privacy is our priority: ● All files are stored locally on your device. ● No unauthorized access to your photos, videos, or files. ● We never upload, sell, or share your personal data. ●You can manage or revoke permissions at any time. SpaceKeeper is committed to providing a safe, simple, and efficient mobile storage management experience. Auto-Renewable VIP Subscription Details β€’ Plans: Weekly (7 days), Monthly (30 days), Quarterly (3 months) β€’ Payment: Upon confirmation, the subscription fee will be charged to your Apple ID account β€’ Renewal: Subscriptions automatically renew 24 hours before the current period ends, and your Apple ID will be charged β€’ Cancel: You can turn off auto-renewal at least 24 hours before the current period ends via Settings > [Your Name] > Subscriptions β€’ Trial: If a free trial is offered, any unused portion will be forfeited upon purchasing a subscription Privacy Policy: https://docs.qq.com/doc/DVFV3bGNQZXp1UUdE Terms of Service: https://docs.qq.com/doc/DVHF4dHFXZFdsSWtt

Screenshots

FastSync3 screens
iSpacekeeper4 screens

Verdict

The call

The clearest difference is in-app purchases: FastSync at none against iSpacekeeper's 3. iSpacekeeper's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. iSpacekeeper sells 3 in-app purchases, starting at $4.99 per 7 days. FastSync asks for nothing beyond the download.

UpkeepUpdate frequency

FastSync ships an update every 2 weeks, iSpacekeeper every 4 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard2 real differences Β· 4 level
FastSync versus iSpacekeeper: the parameters behind the verdict, then further details
ParameterFastSynciSpacekeeper
PriceFreeFree
Update frequencyEvery 2 weeksEvery 4 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPod β€” betteriPhone
Requires iOS15.0 β€” better16.6
Further details β€” not scored
Size2 MB28 MB
Age rating4+4+
DeveloperLEADVISION MEDIA MANAGEMENT LIMITEDε…ƒη”² ι™ˆ

In-app purchases

None

FastSync

No in-app purchases

3 purchases

iSpacekeeper

Subscriptions3
  • iSpaceKeeper-week$4.997 Days
  • iSpaceKeeper.$9.991 Month
  • iSpacekeeper.$19.993 Months

Questions

Is FastSync free?
FastSync is free to download, with no in-app purchases.
Is iSpacekeeper free?
iSpacekeeper is free to download, with in-app purchases available.
Do FastSync or iSpacekeeper have ads?
Neither FastSync nor iSpacekeeper shows ads.
Which is updated more often, FastSync or iSpacekeeper?
FastSync ships an update every 2 weeks, and iSpacekeeper every 4 days. Most recently, FastSync was updated on October 30, 2026 and iSpacekeeper on October 28, 2026.

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