Otnac vs SOLO viSo 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Otnac
This application allows project team members and system administrators of organizations using Epic Canto to preview upcoming development before it is released to clinicians. Access requires administrator security within an organization that is live on or installing Canto. Clinical users should download the standard Epic Canto app instead.
- Preview upcoming Epic Canto development
- For project team members
- For system administrators
- Requires Epic Canto installation
- Administrator security access
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With Otnac, project team members and system administrators of organizations using Epic Canto can preview upcoming development before it is released to clinicians. To use this application, your organization must either be live on or installing Canto. Additionally, you must have appropriate administrator security within your organization. If you are a clinical user of Epic Canto, please be aware that you will not be able to access Otnac. Instead, you should download the current version of Epic Canto from the App Store.
SOLO viSo 2
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SOLO Laboratories has manufactured fully custom orthotics for nearly four decades and developed the first affordable, widely used podiatric foot scanner 15 years ago. Building on years of experience, the fourth generation 3D foot scanner, SOLO viSo 2, was developed with the user in mind: * The app is free! No monthly fee. * Eliminate the cost and mess of casting for custom Functional, Dress, Accommodative, and Diabetic orthotics and select Richie Braces. * Send orders directly to SOLO. No mailing delays results in receiving finished devices sooner. * No shipping costs to SOLO. * Order form validation significantly reduces questions from SOLO after the order is placed. * Scan-box foot position color coding makes foot alignment much easier. SOLO viSo 2, in concert with the Structure 3D camera by Occipital, provides a highly accurate method of capturing the lower leg. All necessary order information is maintained in a safe, HIPAA compliant manner. Optionally, flexible rules that control the format of patient identifiers makes safeguarding PHI easier and more enforceable. You are free to identify your patients in a manner that is secure and matches a format that works for your practice. Already have an iPad and Structure camera? Call SOLO today at 800-765-6522 to get started. If you do not have the hardware, speak with a SOLO representative to learn about our 60 day trial program using our hardware, enabling you to discover if a SOLO viSo 2 is right for you in an easy and risk-free manner.
Verdict
The clearest difference is update cadence: Otnac at every 3 weeks against SOLO viSo 2's every 4 months. SOLO viSo 2's advantage is iOS requirement (12.2 vs 18.0). 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. Neither carries in-app purchases, so what you see is what you pay.
Otnac ships an update every 3 weeks, SOLO viSo 2 every 4 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | Otnac | SOLO viSo 2 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPad |
| Requires iOS | 18.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 567 MB | 113 MB |
| Age rating | 17+ | 12+ |
| Developer | Epic | Taika3D Oy |
In-app purchases
Otnac
No in-app purchases
SOLO viSo 2
No in-app purchases
Questions
Is Otnac free?
Is SOLO viSo 2 free?
Do Otnac or SOLO viSo 2 have ads?
Which is updated more often, Otnac or SOLO viSo 2?
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