Food_Diary vs SPARK SCALE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Food_Diary
This app provides a visual food diary on a calendar, allowing you to see all your meals at a glance. It uses AI to generate meal images and estimate nutrition even if you forget to take a photo, and helps make sense of your health data by comparing it to averages.
- Visual meal diary on a calendar
- AI-generated meal images
- Estimated nutrition for meals
- Health data comparison to averages
- AI prompt for data breakdown
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See every meal at a glance. A visual food diary on your calendar. THE PROBLEM You want to track what you eat, but you forget to record meals or miss taking a photo. And even when you do track your health, Apple Health gives you numbers without context — no baseline, no averages, no way to know what they actually mean. WHY EXISTING SOLUTIONS FAIL Most food trackers show you lists and numbers — not a visual picture of what you ate. If you missed taking a photo, there's no way to add one after the fact. And none of them help you make sense of your health data. THE SOLUTION FoodDiary lays out your entire month of eating — breakfast, lunch, and dinner — on a familiar calendar. Forgot to take a photo? Apple Intelligence generates an image of your meal and estimates its nutrition — even days later. Your health data, made meaningful. See how your numbers compare against averages for men and women, and copy a ready-made prompt into any AI for a plain-language breakdown of what it all means. Free use includes banner ads. Remove ads permanently with a one-time purchase. No subscription.
SPARK SCALE
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As time goes by, a slowing metabolism—combined with the everyday pressures of life—can make weight management quite a challenge. In the past, I used Excel to track my body metrics. However, it lacked visual clarity and wasn't convenient to check on the go. I couldn't help but wonder: What if there were a portable app that not only tracked data, but also analyzed body types and offered styling inspiration? That vision gave birth to SPARK SCALE. Data isn't just about numbers; it's about understanding ourselves better. Key Features Data Tracking: Effortlessly record key body metrics, including weight and body fat percentage. Trend Charts: Automatically visualize your data with clean charts to track your long-term progress at a glance. Smart Body Type Analysis: Receive intelligent analysis of your body type alongside customized styling recommendations. Styling Guide: Get practical advice on what to avoid so you can shop smarter and highlight your best proportions. Free vs. Pro Free Version: Unlimited data logging. Pro Version: Unlocks body type analysis, custom color themes, data export/import backup, and removes all ads. Subscriptions renew automatically on a monthly or annual basis. Pricing is displayed on the in-app purchase page. You can manage or cancel your subscription at any time via Settings > Apple ID. This is more than just a collection of numbers—it's a continuous conversation with your body. Now, you can monitor changes anytime, visualize trends through clear charts, and receive tailored fashion tips. Every step of progress serves as an inspiring reminder that keeps you moving forward. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Food_Diary at none against SPARK SCALE's 2. SPARK SCALE's advantage is iOS requirement (15.1 vs 18.0). On price, ads 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. SPARK SCALE sells 2 in-app purchases, starting at $0.99 per month. Food_Diary asks for nothing beyond the download.
| Parameter | Food_Diary | SPARK SCALE |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Fortnightly | — |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 72 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Seung-Un Ham | Yen Hsi Chen |
In-app purchases
Food_Diary
No in-app purchases
SPARK SCALE
- Pro 月費方案$0.991 Month
- Pro 年費方案$7.991 Year









