HashdPotato vs SoloWatermark
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
HashdPotato
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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
SoloWatermark
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SoloWatermark lets you add watermarks to photos on your iPhone. Built around the idea βyour signature on your photos,β 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 ITβS 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
Verdict
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
Both are free to download. SoloWatermark sells 2 in-app purchases, starting at $1.99 per month. HashdPotato asks for nothing beyond the download.
HashdPotato ships an update every 3 months, SoloWatermark weekly. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.
| Parameter | HashdPotato | SoloWatermark |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Weekly β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 26.0 | 16.4 β better |
| Further details β not scored | ||
| Size | 12 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Kaito Muraoka | JUNICHI HASHIMOTO |
In-app purchases
HashdPotato
No in-app purchases
SoloWatermark
- Premium Membership$1.991 Month
- Premium Plan 1 Year7 Days trial$11.991 Year
Questions
Is HashdPotato free?
Is SoloWatermark free?
Do HashdPotato or SoloWatermark have ads?
Which is updated more often, HashdPotato or SoloWatermark?
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