Comparison

HashdPotato vs SoloWatermark

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

Head to head
About

HashdPotato

Features
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HashdPotato is a custom keyboard that lets you insert your favorite hashtags with a single tap. Works in Instagram, X, TikTok, YouTube, Facebook and any other app β€” just switch keyboards. No more copying from your notes app, no more typos. β–  FEATURES [One-Tap Input] Tap a tag on the keyboard to insert "#tag ". Tags wrap automatically, so you can see them all without scrolling. [Easy Tag Management] Add, delete, and reorder your hashtags in the app. Type them with or without "#". [Choose What Shows] Toggle which saved tags appear on the keyboard, so you only see what you need. [Quick Start with Suggestions] Pick your social platform during setup and get suggested hashtags tailored to it. [Light & Dark Mode] Designed to blend in with the system keyboard. β–  PRIVACY The HashdPotato keyboard does not require Full Access. It never collects or sends what you type. β–  HOW TO USE 1. Save your favorite hashtags in the app 2. Go to Settings > General > Keyboard > Keyboards > Add New Keyboard and add HashdPotato 3. When posting, tap the globe key to switch to HashdPotato and tap a tag

About

SoloWatermark

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SoloWatermark lets you add watermarks to photos on your iPhone. Built around the idea β€œyour signature on your photos,” you can place text or images on a selected photo, adjust position, size, and opacity, then save straight to your photo library. FREE FEATURES β€’ Text watermarks Enter any text and adjust font and opacity to overlay it on your photos. SOLOWATERMARK PRO FEATURES β€’ Image watermarks Overlay transparent PNGs or background-removed images as watermarks. β€’ Zoom-style tiled watermarks Repeat your watermark across the entire photo. β€’ Markup Draw freely on photos (iOS). β€’ QR code watermarks Embed a URL as a QR code on your photo. β€’ Background removal Extract the subject and save as a transparent PNG (processed on-device). WHO IT’S FOR β€’ Anyone who wants credits or signatures before posting to social media β€’ Sellers and creators watermarking listing or portfolio photos β€’ People looking for a simple, ready-to-use watermark app PRIVACY Photo selection, editing, and saving all happen on your device. We do not upload your photos to developer servers. ABOUT SOLOWATERMARK PRO SoloWatermark Pro is an auto-renewing subscription. Subscribing unlocks all Pro features listed above. Pricing is shown on the purchase screen. β€’ Payment is charged to your Apple ID account β€’ Subscription renews automatically unless canceled at least 24 hours before the end of the current period β€’ Renewal charges are billed within 24 hours before the end of the current period unless canceled in Account Settings β€’ Manage or cancel anytime in App Store account settings after purchase β€’ Any unused portion of a free trial may be forfeited when you purchase a subscription Terms of Service and Privacy Policy are available in the app Settings. β€’ Terms of Service: https://pacific-sandalwood-6de.notion.site/397a1df91a07803da4eadc7142b45b1c β€’ Privacy Policy: https://pacific-sandalwood-6de.notion.site/de0f01e36f5d4d2ebaeed98414a568aa

Screenshots

HashdPotato4 screens
SoloWatermark4 screens

Verdict

The call

The clearest difference is in-app purchases: HashdPotato at none against SoloWatermark's 2. SoloWatermark's advantage is update cadence (weekly vs every 3 months) and iOS requirement (16.4 vs 26.0). On price, ads and device support 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. SoloWatermark sells 2 in-app purchases, starting at $1.99 per month. HashdPotato asks for nothing beyond the download.

UpkeepUpdate frequency

HashdPotato ships an update every 3 months, SoloWatermark weekly. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

Scorecard3 real differences Β· 3 level
HashdPotato versus SoloWatermark: the parameters behind the verdict, then further details
ParameterHashdPotatoSoloWatermark
PriceFreeFree
Update frequencyEvery 3 monthsWeekly β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS26.016.4 β€” better
Further details β€” not scored
Size12 MB74 MB
Age rating4+4+
DeveloperKaito MuraokaJUNICHI HASHIMOTO

In-app purchases

None

HashdPotato

No in-app purchases

2 purchases

SoloWatermark

Subscriptions2
  • Premium Membership$1.991 Month
  • Premium Plan 1 Year7 Days trial$11.991 Year

Questions

Is HashdPotato free?
HashdPotato is free to download, with no in-app purchases.
Is SoloWatermark free?
SoloWatermark is free to download, with in-app purchases available.
Do HashdPotato or SoloWatermark have ads?
Neither HashdPotato nor SoloWatermark shows ads.
Which is updated more often, HashdPotato or SoloWatermark?
HashdPotato ships an update every 3 months, and SoloWatermark weekly. Most recently, HashdPotato was updated on October 9, 2026 and SoloWatermark on October 4, 2026.

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