Fitz Frames vs PopKnock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fitz Frames
Design and order custom-fit, 3D-printed eyewear from the comfort of your home. Use a precise face scan and virtual try-on to find your perfect pair, delivered directly to your door. Enjoy stylish, comfortable glasses made just for you.
- Custom 3D-printed frames
- Precise face scanning
- Virtual try-on
- Doorstep delivery
- Curated stylish designs
- Prescription, sunglasses, blue light options
Read full descriptionHide full description
Tired of glasses that slide down your nose or pinch your temples? Most eyewear is mass-produced for a "standard" face that doesn't exist. Meet Fitz: the first custom eyewear brand that uses 3D face mapping to build frames custom-measured to your unique facial features. At Fitz, we’ve replaced the "one-size-fits-all" model with precision engineering. Whether you have a narrow bridge, a wide fit, or asymmetrical features, our technology ensures your glasses stay perfectly in place from the moment you put them on until the end of your workday. -SCAN: Use your iPhone’s camera to map your unique facial features with sub-millimeter accuracy. -STYLE: Explore a curated collection of modern, professional frames designed to complement your face shape. -CRAFT: We 3D print your frames in our US-based lab, tailored to your exact measurements. -WEAR: Delivered to your door with premium prescription, blue light, or sunglass lenses. [Why it Matters?] No More Adjustments: Eliminate the constant "pushing up" of your frames. Tailored Bridge Width: A secure, comfortable fit that won't leave marks on your nose. Lightweight Strength: Our 3D-printed material is significantly lighter than traditional acetate but built for daily professional life. [Lens Options] High-quality single-vision and progressive prescriptions. Premium Blue Light filtering for digital eye strain. Sunglasses that will be the talk of the town. [The Future of Eyewear] Don't settle for "close enough." Download Fitz today and experience the comfort of glasses made specifically for you.
PopKnock
Discover local businesses and services with this app. Easily find in-store pickup options, book appointments for salons and spas, and make restaurant reservations. Enjoy exclusive discounts and savings on all your purchases with no service fees.
- Local business discovery
- In-store pickup
- Appointment booking
- Restaurant reservations
- Exclusive discounts
- No service fees
Read full descriptionHide full description
PopKnock is a local business hub that brings together a variety of merchants in the community. Through the PopKnock mobile app, customers can conveniently access in-store pickup and other services, including dining at restaurants, make inquiries to various service providers and booking appointments for nail, massage, and salon treatments. Plus, they'll enjoy savings on every purchase with exclusive discounts, store credits, and vouchers. And the best part? There are no service fees.
Screenshots
Verdict
The clearest difference is rating: PopKnock at 5.0 against Fitz Frames's 3.7. PopKnock also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Fitz Frames's advantage is ratings volume (106 vs 4). On price, update cadence, 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. Neither carries in-app purchases, so what you see is what you pay.
PopKnock holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Fitz Frames has 106 ratings behind it against 4, so its average is the more settled of the two.
Fitz Frames ships an update every 4 weeks, PopKnock every 2 weeks. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.
| Parameter | Fitz Frames | PopKnock |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (106 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 45.9% of reviews | — |
| Number of ratings | 106 — better | 4 |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15 — better |
| Further details — not scored | ||
| Size | 75 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Fitz Custom QOZB, LLC | PopKnock LLC |
Customer experience
Fitz Frames
PopKnock
Bugs and requests
Fitz Frames
Reported bugs
8 issues- App not compatible with iPhone 8 Plus and below
- Try-on feature fails to initiate
- Profile picture not captured
- Scanner not working
- PD measurement not readily accessible
Show 3 moreShow fewer
- Orders not processed
- Promo codes not working
- Customer service unresponsive
Requested features
4 requests- Expand frame selection
- Improve app compatibility for older devices
- Provide clearer instructions for the scanner
- Make PD measurement more accessible
PopKnock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fitz Frames
No in-app purchases
PopKnock
No in-app purchases
