Simple Vibrator vs ShellLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Vibrator
This app offers customizable vibration experiences, including continuous and patterned options. Its user-friendly interface makes it easy to control vibration for relaxation or personal needs.
- Continuous vibration
- Patterned vibration options
- User-friendly interface
- Customizable vibration
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Experience the ultimate in customizable vibration with Simple Vibrator: Vibrate! Whether you need continuous vibration for an indefinite time or prefer patterned vibrations, our app has you covered. Key Features: Continuous Vibration: Enjoy an uninterrupted vibration session for as long as you need. Patterned Vibration: Choose from a variety of predefined vibration patterns to suit your preferences. Simple Vibrator: Vibrate! is designed with a sleek and user-friendly interface, making it easy to navigate and customize your vibration experience. Perfect for relaxation, massage, or other personal needs. Download Simple Vibrator: Vibrate! now and take control of your vibration experience!
ShellLog
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ShellLog is a collection log built for people who already know what they found — on the beach, at a shell show, an estate sale, or a club swap. Track species, condition, storage location, and the story behind every shell you own. 【What You Can Do】 ▷ Shell Ledger Log species, family/genus, condition grade (Gem, Extra Fine, Fine, Good, Beach Worn, or Dead Collected), photos, and a short episode memo for each shell. Every entry gets an auto-numbered catalog number — SL-0001, SL-0002, and so on. Free up to 15 shells. ▷ Collected, Purchased, or Traded Record how you got each shell: the beach and date you collected it, the shop or show you bought it from (with price and currency), or a trade. ▷ Log a Whole Beach Haul After saving one shell, keep going. "Log Another" carries over the beach and date (or the shop and price), so you can log an entire haul in one sitting — then review a trip summary when you're done. ▷ Tide & Weather Notes Jot down the conditions when you found something — spring tide, after a storm, low tide, after rain — with one-tap presets or your own notes. ▷ GPS Location Record exactly where you found a shell using your device's location, and open it in Apple Maps or Google Maps anytime. Entirely optional. ▷ Storage Locations Organize shelves, display cases, drawers, and bins in a nested tree, then assign each shell a home. No more digging through boxes for one shell. ▷ Cleaning History Log how and when you cleaned each shell — method, date, and notes — so you're never guessing what you already tried. ▷ Tags Tag shells however you like — favorites, fragile, gift, rare — and filter your list by tag. ▷ Share Cards Generate a shareable card for a single shell, a beach trip haul, or a collection milestone. Free (with a small ShellLog badge) — Pro removes it. ▷ Full Backup Export your entire collection — records and photos — to a ZIP file, and restore it anytime. Included free, no Pro required. 【Who It's For】 · Beachcombers who bring home more shells than they can remember the story of · Buyers and traders at shell shows, festivals, and club swaps · Anyone whose shell box has outgrown "I'll remember where this came from" · Collectors who want a real catalog, not just a camera roll 【Your Data Stays on Your Device】 Everything is stored locally on your iPhone. Nothing is uploaded to external servers. No account required. 【Pricing】 · Free: up to 15 shells. Condition grading, cleaning history, tags, storage locations, GPS, ZIP backup/restore, and share cards (with a small badge) are all included. · ShellLog Pro (one-time purchase): unlimited shells and watermark-free share cards. Pay once, yours forever. ---------------------- Developer: Kore Apps Contact: support@kore-apps.com ----------------------
Screenshots
Verdict
The clearest difference is in-app purchases: Simple Vibrator at none against ShellLog's 1. Simple Vibrator also leads on device support (4 vs 2). ShellLog's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 14 months). On price 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
Both are free to download. ShellLog sells 1 one-off in-app purchase. Simple Vibrator asks for nothing beyond the download.
Simple Vibrator ships an update every 14 months, ShellLog every 6 weeks. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.
| Parameter | Simple Vibrator | ShellLog |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 14 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 51 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | SEUNGWOO JO | kazuki korenori |
In-app purchases
Simple Vibrator
No in-app purchases
ShellLog
- ShellLog Pro$6.99









