Comparison

Watermark Maker vs StringKit

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

Head to head
About

Watermark Maker

This multimedia editor allows you to add watermarks to videos and images, convert formats, compress files, and extract audio. It also offers video speed adjustments, clipping, and muffling, along with image cropping and text recognition.

Highlights
  • Add video watermarks
  • Video format conversion
  • Video compression
  • Audio extraction
  • Image format conversion
  • Image compression
  • Text recognition
Features
Read full description

Watermark treasure - all-round audio and video, picture processor, your exclusive multimedia editor [Features] + Add video watermark + Video format conversion + Video compression + Audio extraction + Video speed change + Duration clipping + Video muffler + Image format conversion + Image compression + Image cropping + Text recognition + Image add watermark The following video formats are supported: FLV AVI, MOV, MP4, 3 gp, MPEG, SWF, MV, RMVB, MKV, QT, RM, M2TS, M2T, ASF, 3 g2, GIF, MPG Supports the following audio formats: MP3,OGG,WAV,M4A,AAC,M4R,WMA,FLAC,AC3,AMR,MMF,MP2,WV, The following image formats are supported: PNG,JPG,JPEG,GIF,PDF,SVG,BMP,EPS,ICO,TIFF,TGA,WBMP,WEBP The process of text recognition is completed on the server side. You only need to wait for about 3s to complete. We promise that we will not save your files and will regularly clear them. [Automatic renewal instructions for VIP Members] Subscription period: 1 month (VIP members are covered for consecutive months); 3 months (continuous VIP membership season) 1 year (continuous VIP membership year). Payment: The user confirms the purchase and charges it to his iTunes account. Cancel renewals: To cancel renewals, manually turn off automatic renewals in iTunes/Apple ID Settings Management 24 hours before the current subscription period expires. Renewal: Apple iTunes account will be deducted within 24 hours before the expiry date, and the renewal period will be extended by one subscription period after the successful deduction. Privacy policy: https://www.rynsolutions.com The user service agreement: https://www.rynsolutions.com

About

StringKit

Read full description

The ultimate companion for text and data processing. StringKit offers a powerful set of utilities to clean, format, and transform your text instantly. From batch editing to string conversion, handle complex data tasks directly on your mobile device. Offline, secure, and built for professional efficiency.

Screenshots

Watermark Maker4 screens
StringKit4 screens

Verdict

The call

The clearest difference is in-app purchases: StringKit at none against Watermark Maker's 3. StringKit also leads on update cadence (daily vs every 2 weeks). On price, ads, device support and iOS requirement 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. Watermark Maker sells 3 in-app purchases, starting at $5.49 per month. StringKit asks for nothing beyond the download.

UpkeepUpdate frequency

Watermark Maker ships an update every 2 weeks, StringKit daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Watermark Maker versus StringKit: the parameters behind the verdict, then further details
ParameterWatermark MakerStringKit
PriceFreeFree
Rating4.6 (15 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings15 — better—
Update frequencyEvery 2 weeksDaily — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.0 — better
Further details — not scored
Size69 MB14 MB
Age rating4+4+
Developer云 杜Anuj Naik

In-app purchases

3 purchases

Watermark Maker

Subscriptions3
  • Month Membership1 Month trial$5.491 Month
  • Season Membership3 Months trial$14.493 Months
  • Year Membership1 Year trial$20.491 Year
None

StringKit

No in-app purchases

Questions

Is Watermark Maker free?
Watermark Maker is free to download, with in-app purchases available.
Is StringKit free?
StringKit is free to download, with no in-app purchases.
Do Watermark Maker or StringKit have ads?
Both Watermark Maker and StringKit show ads.
Which is updated more often, Watermark Maker or StringKit?
Watermark Maker ships an update every 2 weeks, and StringKit daily. Most recently, Watermark Maker was updated on November 3, 2026 and StringKit on October 31, 2026.

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