Image vs SpoolTool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Image
Easily convert your images to JPEG or PNG formats. Supports a wide range of input file types and allows saving to your device or cloud services. Ideal for managing and sharing photos across different platforms.
- Convert to JPEG or PNG
- Supports multiple input formats (JPG, TIFF, GIF, BMP, HEIC, etc.)
- Save to device or cloud services
- Batch conversion of multiple photos
- Converts iPhone HEIC files
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This app is an app that converts image data to PNG or JPEG and saves it. The image formats that can be read are jpg, jpeg, png, tiff, tif, gif, bmp, ico, cur, xbm, heif, heic. You can convert the photo data you have taken and convert the images saved in cloud services such as Dropbox to PNG or JPEG. It is also possible to convert heic, which is the file format of iPhone photos. You can select multiple photos in the photo folder of your iPhone or iPad. Also, there is no limit to the number of multiple selections. Note that the photo will not be previewed when multiple selections are made. The converted images can be saved not only in the photo folder of iPhone or iPad, but also in the cloud service. Note that JPEG does not support saving transparent colors. When you convert a PNG file with a transparent background to JPEG, the background is converted to white. Also, the image quality may deteriorate after conversion. Please be careful. When saving to the photo folder of iPhone or iPad, you cannot freely name the file and it will be given automatically. note that. Also, when saving multiple selected photos to the cloud, a new folder will be created and saved with the same name as the original file. The folder name is "convert_date_time". Uploading a large number of files will take time, so please convert them in several steps.
SpoolTool
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SpoolTool is a clean and easy-to-use app for tracking your 3D printing filament en accessories. Keep an overview of your filament spools, materials and remaining weight and accessories, so you always know what you have available before starting a print. Key features: • Track filament spools and remaining weight • Support for common materials like PLA, PETG and TPU • Stock inventory • Accessory inventory • Simple and distraction-free interface • iCloud synchronization SpoolTool+ (optional in-app purchase): • Unlock additional filament materials • Unlock all accessories • Add more brands and detailed filament information • Enable cost calculation features • Configure spool stock locations SpoolTool does not require an account and does not collect personal data. App data can be stored securely using iCloud when enabled on your device. Built with focus on simplicity, privacy and ease of use.
Screenshots
Verdict
The clearest difference is price: SpoolTool at Free against Image's $1.99. SpoolTool also leads on update cadence (weekly vs monthly). Image's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 26.0). On 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
SpoolTool is free to download; Image costs $1.99 up front. SpoolTool sells 1 one-off in-app purchase. Image asks for nothing beyond the download.
Image ships an update monthly, SpoolTool weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Image | SpoolTool |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 7 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Kei Suefuji | Luc Janssen |
In-app purchases
Image
No in-app purchases
SpoolTool
- SpoolTool+$1.99









