Calendar Maker vs Harv3d
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calendar Maker
Create personalized calendars using your own photos and pre-designed templates. Easily customize date ranges, convert photos to wallpaper, and design monthly calendars in minutes.
- Personalized photo calendars
- Customizable calendar templates
- Photo collage creation
- Convert photos to wallpaper
- Customizable date ranges (2023-9998)
- Monthly calendar design
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Design a calendar with your favorite photos and our collection of amazing calendar templates. Keep track of days with your own personalized calendar. Why not design a personalized calendar and a photo collage for yourself? With our collection of calendar templates and easy editing tools, you’ll have a perfectly designed, personal calendar in less than a minute. Our calendar options allow you to customize your calendar to include date ranges from 2023 to 9998. You can also convert any photo into wallpaper and create a monthly calendar. A quick and easy way to customize your personal calendar. Select a monthly calendar template or create your own design. Choose from our selection of photo-framing designs. Choose a background and a color pattern from our library. Add your favorite photos and create a collage. If you like our app, please rate and comment to help us improve! https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Harv3d
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Harv3d turns your photos into layered, multicolour 3D printable OBJ files - no 3D modelling experience required. Whether you're a hobbyist, maker, or running a 3D print business, Harv3d does the heavy lifting. Import an image, let the app detect and map the dominant colours, assign layer heights, and export a ready-to-slice OBJ file complete with MTL colour data. HOW IT WORKS Import any photo from your gallery or camera Harv3d automatically detects the dominant colours using perceptual colour analysis Adjust layer heights, hide layers you don't need, and fine-tune the colour mapping Preview your model in the built-in 3D viewer Export an OBJ + MTL file ready for your slicer KEY FEATURES Intelligent colour detection - perceptual analysis finds the most visually distinct colours, not just the most common ones Layered 3D model output - each colour becomes its own printable layer with individually adjustable height Built-in 3D preview - inspect your model with pinch-to-zoom, rotate, and pan before exporting Edit mode - paint over misdetected areas to correct the colour mapping manually Base plate control - add an optional base layer for easier bed adhesion Universal OBJ export - compatible with all major slicers and 3D printing software FREE & PRO Harv3d is free to download and use. The free tier supports up to 3 colour layers - perfect for simple designs and to give you a taste of the app. Upgrade to Harv3d Pro with a single one-time purchase (no subscription) to unlock: • Up to 10 colour layers for complex, detailed prints • Higher mesh resolution for finer, sharper models PERFECT FOR • Multicolour 3D printing (Bambu Lab AMS, Prusa MMU, Mosaic Palette) • Lithophanes and portrait prints • Logo and artwork reproductions • Personalised gifts and custom merchandise • Makers and small 3D print businesses SLICER COMPATIBILITY Exports standard OBJ + MTL files compatible with Bambu Studio, PrusaSlicer, Ultimaker Cura, Simplify3D, and any slicer that supports OBJ import. Download Harv3d and start turning your photos into prints today.
Screenshots
Verdict
The clearest difference is ads: Harv3d at none against Calendar Maker's shown. Harv3d also leads on update cadence (every 3 months vs every 12 months). On price, in-app purchases, device support 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. Calendar Maker sells 4 in-app purchases, starting at $5.99 per 7 days and Harv3d sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Calendar Maker ships an update every 12 months, Harv3d every 3 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.
| Parameter | Calendar Maker | Harv3d |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (21 ratings) — better | — |
| Positive reviews | 28.6% of reviews | — |
| Number of ratings | 21 — better | — |
| Update frequency | Every 12 months | Every 3 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 45 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Alejandro Melero Zaballos | SAMUEL R HARVEY |
In-app purchases
Calendar Maker
- Weekly plan3 Days trial$5.997 Days
- Annual plan$17.991 Year
- Remove Ads$5.99
- Forever plan$29.99
Harv3d
- Pro$4.99
Questions
Is Calendar Maker free?
Is Harv3d free?
Do Calendar Maker or Harv3d have ads?
Which is updated more often, Calendar Maker or Harv3d?
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