Comparison

S vs DR

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

Head to head
About

S

Features
Read full description

1、Product Description Santachi S-NVS is a professional, practical and easy surveillance application program which developed for the need of video surveillance system. It provides the high quality video surveillance image, and realize to know the dynamic information at everywhere at anytime. 2、Function Description It can realize that landscape make the image to show clearly in full screen, grasp more image details. Real-time video display frame by frame, can know the surveillance general situation, and minimize the network flow at the same time. Accurate PTZ control, effectively monitor a wide range of video image information directly. Local record/snapshot, effectively to make mobile local record/snapshot, easy to check in the future. When select "real-time" or "fluency" pre-set code stream, can optimize the switching to the different network environment 3、About Santachi Santachi Video Technology (Shenzhen) Co., Ltd. is a leading supplier who provides the leading security products, professional industry solutions and high quality service to the world. Santachi has our own independent core technology of video processing and sustainable professional development ability. We devoted ourselves to improve the technology of video processing and video analysis. we provide the camera, DVR/DVS/NVR, video storage, video management software, platform, display control and other security products to use in a various of application scenarios, such as transportation, real estate, distribution, public security, justice, education, finance, electric power and other industries . Santachi is a well known surveillance enterprise in China. We have been given the honor of “Hi-tech enterprise” ,“Top 10 surveillance brand in China” ,“top 10 influential surveillance brand in China”, “Recommended brands of safety city” and etc

About

DR

Features
Read full description

DR-Terminal turns your iPhone and iPad into a full terminal for every host: SSH, Telnet, SFTP and SCP, a dual-pane file manager, SSH key tools and hardware security keys — servers, routers, switches, embedded boards and Raspberry Pi in a single app. The same app runs on Windows, macOS and Linux. KEY FEATURES: Terminal • Own terminal engine: true color, Unicode and full-screen TUI apps — htop, vim, tmux and mc render as they should • DevOps Keyboard — split terminal keyboard with arrows, modifiers, shortcuts and snippet tiles, adjustable size and opacity • Output highlighting — colorize logs and command output with custom rules • Multiple concurrent sessions with keep-alive in the background • Command history and autocomplete Connections • SSH with password, key, keyboard-interactive and hardware security key authentication • Post-quantum key exchange (sntrup761x25519, mlkem768x25519) • Jump Host (ProxyJump) for multi-hop connections • Quick Connect without saving credentials; connection groups • Automatic server discovery on your local network (Bonjour/mDNS) • Classic Telnet client for network gear and embedded systems Files — SFTP, SCP and the Commander • SCP for hosts without SFTP: OpenWrt, Dropbear and BusyBox routers — Auto picks the transport per host, or pin SFTP or SCP per connection • Dual-pane Commander: local and remote panels side by side; copy, move and delete between any two locations with one tap — server to server too • Open ZIP, TAR and ISO archives in place, even on remote servers, without downloading • Built-in viewer for text, Markdown, images and PDF; copy an image straight to the clipboard • Bookmarks and a default directory per connection • File sharing — send files from other apps straight to a server, over SFTP or SCP Snippets • Parameterized command snippets with typed fields and a live command preview • Built-in catalog of 120+ DevOps commands: packages, services, Docker, network, storage and ZFS • System-aware variants — the detected host OS picks the right tool (apt, dnf, pacman, zypper, brew, pkg, apk) Host Insight • Detected OS, CPU and hardware plus live load, memory, swap and disk gauges in the session sidebar Keys and Security • SSH key generation (Ed25519, ECDSA, RSA) — also directly on a YubiKey over NFC or USB-C • SSH key converter — OpenSSH, PEM, PuTTY PPK, PKCS#1/PKCS#8, DER • FIDO2/YubiKey security keys (Ed25519-SK, ECDSA-SK) over NFC and USB-C • One-tap migration from password to key-based authentication • Host key verification with fingerprint display and trusted hosts management • Encrypted credential storage (iOS Keychain) — no credentials in plaintext • Encrypted configuration backup and restore Customization • Dark, Light, and System theme; 435 terminal color themes; per-connection theme and font size • Built-in documentation in 33 languages PRO (In-App Purchase): • Removes the ads and the welcome screen at launch — every feature above is free, with no connection limits Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

S4 screens
DR4 screens

Verdict

The call

The clearest difference is in-app purchases: S at none against DR's 6. S also leads on iOS requirement (7.0 vs 16.0). DR's advantage is update cadence (every 4 days vs every 10 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DR sells 6 in-app purchases, starting at $1.99 per 7 days. S asks for nothing beyond the download.

UpkeepUpdate frequency

S ships an update every 10 months, DR every 4 days. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 3 level
S versus DR: the parameters behind the verdict, then further details
ParameterSDR
PriceFreeFree
Update frequencyEvery 10 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS7.0 — better16.0
Further details — not scored
Size3 MB101 MB
Age rating4+4+
Developer金三立视频科技(深圳)有限公司DR-Online Sp. z o.o.

In-app purchases

None

S

No in-app purchases

6 purchases

DR

Subscriptions5
  • DR Terminal PRO — 1 Week$1.997 Days
  • DR Terminal PRO — 1 Month$2.991 Month
  • DR Terminal PRO — 3 Months$4.993 Months
Show 2 more
  • DR Terminal PRO — 6 Months$7.996 Months
  • DR Terminal PRO — 1 Year$12.991 Year
One-time1
  • DR Terminal PRO — Lifetime$24.99

Questions

Is S free?
S is free to download, with no in-app purchases.
Is DR free?
DR is free to download, with in-app purchases available.
Do S or DR have ads?
Neither S nor DR shows ads.
Which is updated more often, S or DR?
S ships an update every 10 months, and DR every 4 days. Most recently, S was updated on October 26, 2026 and DR on October 28, 2026.

Other comparisons