6F vs Scent Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
6F
This tool combines photo editing, annotation, and illustration capabilities into a single application. It offers precise markup and drawing features, similar to desktop software, using a virtual mouse for accuracy. Create professional designs, posters, and illustrations with ease.
- Accurate photo markup and annotation
- Virtual mouse for precise control
- Complex typesetting and poster design
- Vector shape drawing and illustration
- Create charts and graphics
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It’s every photo app, annotate app, markup & design app, illustrate app you’ve ever needed, wanted, or dreamed of - combined into one powerful tool.For the first time, people can use “Mouse” on mobile to do accurate annotation&markup & illustrate jobs, just as work on PC or Mac . Why is the Virtual Mouse must-need ? In the traditional finger touch drawing , the finger covered a large area makes you unable to locate accurately . Using the Virtual Mouse , you can work precisely and intuitively. ●Features ( many are free, some are unlocked with purchases ): - Easily to accurately markup & annotate pictures( such as the dimension lines ,texts , shapes etc). - Easily to make complex typesetting , professional poster , PPT , charts , graphics . - Easily to draw vector shapes , illustration and cartoon . 6F is a powerful markup photo tool and illustrate tool. It markup or annotate the photo with various shapes. Any time, just take a photo and markup or annotate it! Make every picture annotable. standard Apple Terms of Use (EULA)https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Scent Diary
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ScentMemory is a unique app that helps you capture and explore the deep connection between scent and memory. Based on the scientifically supported Proust effect, this app allows you to document the scents you encounter in daily life and the memories they awaken. With ScentMemory, you can record detailed notes about each scent, describe the emotions and memories it evokes, rate its intensity, and even log the location of the experience. Organize entries by category—such as food, nature, places, or artificial scents—and view your scent journey in a beautifully visualized format. Key features: - Intuitive scent logging with emotion and memory descriptions - Customizable categories for easy organization - Pie charts showing scent distribution and intensity - Daily and weekly trends and average scent strength - Search and filter by scent, memory, category, or time - Data stored locally on your device—your memories remain private - No ads with the premium version Designed with mindfulness and self-awareness in mind, ScentMemory turns your sensory experiences into a personal growth tool. Whether you're a fragrance enthusiast, a memory keeper, or someone practicing mindfulness, this app is your companion for preserving life's subtle moments. Start your scent journey today and rediscover your memories through smell with ScentMemory.
Screenshots
Verdict
The clearest difference is ads: 6F at none against Scent Diary's shown. 6F also leads on update cadence (every 3 days vs every 8 months). Scent Diary's advantage is iOS requirement (15.0 vs 17). On price, in-app purchases and device support 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. 6F sells 2 in-app purchases, starting at $2.49 per month and Scent Diary sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
6F ships an update every 3 days, Scent Diary every 8 months. Both last shipped on October 24, 2026.
| Parameter | 6F | Scent Diary |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (17 ratings) — better | — |
| Positive reviews | 86.4% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Every 3 days — better | Every 8 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17 | 15.0 — better |
| Further details — not scored | ||
| Size | 136 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | 五四 徐 | kota tada |
In-app purchases
6F
- 6F Master$2.491 Month
- Upgrade to Pro$2.99
Scent Diary
- Premium$4.99
- Treat to Lunch$14.99









