Head Model Studio vs Tattoo Inkprep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Head Model Studio
This app provides 3D reference models for artists to study and draw faces. It offers detailed control over lighting and rendering to help users understand facial planes and tones, aiding in portrait drawing practice.
- 25 detailed 3D head models
- Full 3D model control (zoom, tilt, rotate)
- Realistic environmental and studio lighting
- Customizable rendering with edge outlines
- Pre-made practice scenes
- Study facial planes and geometry
Read full descriptionHide full description
Draw better portraits with Head Model Studio. Study faces in detail from simple planes to complex geometry. It is the best iOS / iPadOS application to learn and study faces in detail. Take your sketches to the next level. INSPIRED BY FAMOUS TECHNIQUES Inspired by master methodologies, Head Model Studio comes with 25 different models, including 2 free. From simple to more detailed models, progress easily by understanding the planes of the face. Expand your practice with 5 classical models. COMPLETE CONTROL You have complete control over the 3D models. Zoom, tilt, and rotate to study each part of the model at will. ENVIRONMENTAL & STUDIO LIGHTING Realistic environmental lighting based on HDR photos, recreate a sunrise, midday, or sunset illumination. Switch to Studio Lighting to create amazing lighting composition with multiple spotlights and different colors. Change the lighting to be at any angle or intensity. Perfect to study the planes of the head and understand tones. CUSTOMISABLE RENDERING The edge outline highlights the planes for easier practice. Turn it off once comfortable and practice in a more realistic setting. Modify the shininess for a different material rendering. PRE-MADE PRACTICE Want to learn to draw but unsure where or how to start? We’ve created a bunch of scenes to get you started. PRICING Head Model Studio offers a couple of free models. A premium access is required to access the rest of the models. Lifetime and Yearly (non-recurring) options are available. WE LOVE FEEDBACK I love coding and drawing, feel free to reach out, and tell me what feature you'd love to see in the app. Terms & Conditions: https://headmodelstudio.com/terms-conditions/
Tattoo Inkprep
Read full descriptionHide full description
Inkprep requires an Inkprep Pro subscription to use the app. It offers a monthly and a yearly plan with auto-renewal. You can cancel anytime from your Apple ID settings. Inkprep is the booth tool for tattoo artists who work in color. You upload the clean digital design, choose the ink brand you work with and your client's skin tone. Inkprep returns the exact palette: which bottles you need and, when no single bottle matches, which mix to make and in what ratio. HOW IT WORKS 1. Upload the clean design (PNG, JPG or WEBP). 2. Choose your ink brand and the skin tone. 3. Get the color recipe in seconds. WHAT'S INCLUDED · 1,105 bottles from 6 brands: Eternal Ink, Intenze, Dermaglo, World Famous, Radiant and Solid Ink. · Recommended bottle for every color in the design. · Suggested mixes at 70/30, 50/50 and 30/70 ratios when there's no direct match. · Color loupe: zoom into any area of the design and see the assigned ink. · My Inks: save your real inventory and prioritize what you already have in the studio. · Browsable catalog with filters by brand, color family and search. · Project history and favorites. · Optimized for tablet: design on the left, recipe on the right. NOT GENERATIVE AI Color matching is deterministic and traceable: LAB color space and Delta E distance over each brand's real catalog. The same colors always give the same result. Nothing is made up. WHO IT'S FOR For tattoo artists who tattoo in color and want to stop improvising the palette by eye in front of the client. You prep the session before you start. SUBSCRIPTION Inkprep Pro unlocks unlimited analyses. Monthly or yearly subscription, auto-renewing. Cancel anytime from your Apple ID settings. Privacy Policy: https://inkprep.app/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Tattoo Inkprep at every 5 days against Head Model Studio's monthly. Tattoo Inkprep also leads on iOS requirement (13.0 vs 16.4). On price, ads, 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. Head Model Studio sells 4 in-app purchases, starting at $9.00 per month and Tattoo Inkprep sells 2 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.
Head Model Studio ships an update monthly, Tattoo Inkprep every 5 days. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.
| Parameter | Head Model Studio | Tattoo Inkprep |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (2.4K ratings) — better | — |
| Positive reviews | 76.5% of reviews | — |
| Number of ratings | 2.4K — better | — |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 2.2 GB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Wes Castain | Guillermo Andujar |
Bugs and requests
Head Model Studio
Reported bugs
2 issues- Sudden loss of model functionality after updates
- Overheating issues on some devices
Requested features
4 requests- Add female Loomis head models
- Expand customization options for paid users
- Implement full-body reference models
- Provide option for one-time lifetime purchase
Tattoo Inkprep
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Head Model Studio
- 1 Month Access$9.001 Month
- 1 Year Access$16.001 Year
- 1 Year Access$23.00
- Lifetime Access$50.00
Tattoo Inkprep
- Inkprep Pro3 Days trial$11.991 Month
- Inkprep Pro3 Days trial$89.991 Year
Questions
Is Head Model Studio free?
Is Tattoo Inkprep free?
Do Head Model Studio or Tattoo Inkprep have ads?
Which is updated more often, Head Model Studio or Tattoo Inkprep?
Other comparisons















