UmCAService vs Nectain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UmCAService
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UmCAservice - cross-platform cryptographic REST API service Main tasks: Electronic signatures creation(raw signature or envelopes in CAdES BES, CAdES TS, CAdES Long C, CAdES Long X formats) Electronic signatures, timestamps and certificates validation Key-stores management(generation and removal of keys with certificates, updating certificates on the keystores, change of pin code) Asymmetric encryption and decryption. Key-store types supported: Hardware: devices supporting PKCS#11 interface(for example Avtor ST337 or Avtor ST338) Software: Pfx(PKCS#12), JKS (Java Key Store), .DAT(IIT), .ZS2(Accredited Certification Authority “Ukraine”) Two editions of the service are currently available: Basic - free edition of the service for non-commercial use. The main functional includes creation of advanced/qualified electronic signatures. Full - edition of the service for commercial use. The main functional includes creation and verification of advanced/qualified electronic signatures, management of certificates and key-stores, asymmetric encryption and decryption of data(e.g. creation of cryptographic envelopes).
Nectain
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Nectain lets you securely capture, find, and work with documents wherever you are. It’s the mobile companion for organizations that use Nectain to run document-heavy processes — approvals, HR, finance, procurement, projects, service cases, and more. With the app, you don’t have to wait until you’re back at your desk to move a document forward. Access your documents, tasks, and discussions on the go. Browse smart folders, search across document content and metadata, respond to document tasks, and add new documents right from your phone camera. Keep processes moving with mobile notifications and built-in AI summaries that help you understand long files faster. To use this app, you need an active Nectain environment and a user account provided by your organization. If your company doesn’t have Nectain yet, please contact our team to get started: https://nectain.com/get-a-demo/ Do more with your documents : • Secure repository with smart folders – browse the structure your admins configured for you, so you always see the right documents for your role or department. • Smart search – quickly find documents by metadata (names, dates, IDs, contract numbers) and by full document text. Even on mobile you can locate the exact file you need. • Document status notifications – stay on top of approvals, new assignments, comments, and status changes. • Document tasks – open a document and complete the action right away: approve, review, add info, or pass it to the next step. Collaborate anywhere: • Commenting – leave clarifications, questions, or context directly under the document so the history stays in one place. • Document discussions (public and private) – keep internal notes separate from shared threads. Public discussions can be visible to the whole team, while private threads can be used for sensitive topics. • Task and document movement tracking – see where the document currently is in the process, who touched it, and what is coming next. This is especially useful for approvals that involve several teams. Work faster with automation: • Document scanning – capture paper on the spot, send it to the repository, and trigger the automation your admins have set up (for example, route to accounting or start recognition). • Flexible conditional document filters – build quick views of only the documents that matter to you right now (for example, “my overdue tasks” or “contracts awaiting signature”). • Bulk actions with documents – when you have several items to process, you can update or move them together instead of opening each one manually. AI inside: • Document summary using AI – get the key points of long files in seconds, right on mobile. Perfect for policies, contracts, incoming correspondence, or multi-page scanned documents. • Run Smart Actions with documents – use AI-powered actions configured in your Nectain environment to extract, clean, or transform information without leaving the app. Manage your account: • Login to your corporate Nectain – secure authentication to your organization’s instance. • Profile settings – keep your basic info up to date and work under your own permissions and roles. Nectain is designed for teams that value secure, structured, and auditable work with documents. Your admins control access, folders, workflows, and AI scenarios — the mobile app simply brings it to your phone so you can stay productive when traveling, working from home, or assisting colleagues on site. Get a demo to start with Nectain: https://nectain.com/get-a-demo/ Learn more about Nectain: https://nectain.com/ Video tutorials: https://www.youtube.com/playlist?list=PLF5A1Nc5uWnhGnP29BHe7zOoCzTGGGxWY
Screenshots
Verdict
The clearest difference is in-app purchases: Nectain at none against UmCAService's 3. Nectain also leads on iOS requirement (13.0 vs 15.0). UmCAService's advantage is update cadence (fortnightly vs every 3 months). On price, ads 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. UmCAService sells 3 in-app purchases, starting at $4.99 per month. Nectain asks for nothing beyond the download.
UmCAService ships an update fortnightly, Nectain every 3 months. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.
| Parameter | UmCAService | Nectain |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 59 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | AVTOR LLC | Nectain s.r.o |
In-app purchases
UmCAService
- UmCAService - 1 month$4.991 Month
- UmCAService - 6 month$24.996 Months
- UmCAService - 12 month$49.991 Year
Nectain
No in-app purchases








