Comparison

NUPIC Mobile vs OtterSign

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Digital Waiver Signing Kiosk

Free

💼 Business

No ratingsView app →

About

NUPIC Mobile

Features

Read full description

NUPIC is committed to the future of commercial nuclear power. With a proven process for evaluating suppliers to high standards of quality, NUPIC is the NRC Licensee's preferred and cost-effective method of maintaining their Approved Suppliers List. NUPIC Members include all domestic U.S. nuclear utilities, and several international members. The NUPIC Mobile app uses industry standard encryption technology to secure all transactional information as it travels from your device to our systems, and all information stored by this application on this device is encrypted.

About

OtterSign

Features

Read full description

OtterWaiver is a cloud based online waiver system that allows you to custom, collect and manage electronic waivers. In just minutes you can convert your existing paper waiver into a digital waiver and get rid of your paper storage forever. Download our app today and turn your iPhone or ipad into a dedicated digital waiver station.

Screenshots

NUPIC Mobile4 screens

OtterSign4 screens

Verdict

The call

The clearest difference is update cadence: OtterSign at every 11 days against NUPIC Mobile's every 2 months. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

NUPIC Mobile ships an update every 2 months, OtterSign every 11 days. Both last shipped on October 24, 2026.

Scorecard1 real difference · 5 level

NUPIC Mobile versus OtterSign: the parameters behind the verdict, then further details
Parameter	NUPIC Mobile	OtterSign
Price	Free	Free
Update frequency	Every 2 months	Every 11 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.0 — better	15.5
Further details — not scored
Size	67 MB	61 MB
Age rating	4+	4+
Developer	ETHANY Corp.	Otter, LLC

In-app purchases

None

NUPIC Mobile

No in-app purchases

None

OtterSign

No in-app purchases

Questions

Is NUPIC Mobile free?

NUPIC Mobile is free to download, with no in-app purchases.

Is OtterSign free?

OtterSign is free to download, with no in-app purchases.

Do NUPIC Mobile or OtterSign have ads?

Neither NUPIC Mobile nor OtterSign shows ads.

Which is updated more often, NUPIC Mobile or OtterSign?

NUPIC Mobile ships an update every 2 months, and OtterSign every 11 days. Most recently, NUPIC Mobile was updated on October 24, 2026 and OtterSign on October 24, 2026.