Comparison

SealSkin vs Hold Up

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

Head to head
About

SealSkin

Features
Read full description

SealSkin is a self-hosted, client-server platform that enables users to run powerful, containerized desktop applications streamed directly to a web browser. This application allows launching of applications and collaborative sessions on your SealSkin server while providing a full management interface to administrators. To use this App on iOS the server will need a legitimate SSL certificate placed in /config/ssl. Server Component: https://github.com/linuxserver/docker-sealskin

About

Hold Up

Features
Read full description

Got a text saying your Apple ID is locked? A delivery fee to pay? A grandchild who needs gift cards? Take a screenshot and share it to Hold Up. It reads the message right on your iPhone and gives you a plain answer: โ€ข Likely scam โ€ข Unclear โ€ข Looks ok Then it names three things it noticed in that specific message, and tells you what to do โ€” usually: do not tap that link. NOTHING IS UPLOADED There is no account to make. Turn on Airplane Mode and it still works, because the whole check happens on your phone. Your history stays on the device. BUILT TO BE READ OUT LOUD Large type, high contrast, and one thing to tap. Made for the moment you are on the phone with a parent trying to talk them out of sending money. TWO TAPS FROM MESSAGES Screenshot the message, tap Share, tap Hold Up. That is the whole thing. Hold Up is a second opinion, not a guarantee. If money or passwords are involved, hang up and use a number you already know. Five free checks. Then $19.99 a year, or $2.99 a month. SUBSCRIPTION Hold Up Unlimited gives you unlimited checks. โ€ข Yearly โ€” $19.99, billed once a year โ€ข Monthly โ€” $2.99, billed once a month Payment is charged to your Apple Account when you confirm the purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel it any time in your Apple Account settings. Terms of Use (EULA): https://sentinelai.in/terms Privacy Policy: https://sentinelai.in/privacy

Screenshots

SealSkin4 screens
Hold Up4 screens

Verdict

The call

The clearest difference is in-app purchases: SealSkin at none against Hold Up's 2. Hold Up's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Hold Up sells 2 in-app purchases, starting at $2.99 per month. SealSkin asks for nothing beyond the download.

UpkeepUpdate frequency

SealSkin ships an update every 2 months, Hold Up fortnightly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard3 real differences ยท 3 level
SealSkin versus Hold Up: the parameters behind the verdict, then further details
ParameterSealSkinHold Up
PriceFreeFree
Update frequencyEvery 2 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS26.018.0 โ€” better
Further details โ€” not scored
Size4 MB1 MB
Age rating17+4+
DeveloperRyan KubaSarvesh Anand Kandala

In-app purchases

None

SealSkin

No in-app purchases

2 purchases

Hold Up

Subscriptions2
  • Hold Up Unlimited Monthly$2.991 Month
  • Hold Up Unlimited Yearly$19.991 Year

Questions

Is SealSkin free?
SealSkin is free to download, with no in-app purchases.
Is Hold Up free?
Hold Up is free to download, with in-app purchases available.
Do SealSkin or Hold Up have ads?
Neither SealSkin nor Hold Up shows ads.
Which is updated more often, SealSkin or Hold Up?
SealSkin ships an update every 2 months, and Hold Up fortnightly. Most recently, SealSkin was updated on October 24, 2026 and Hold Up on October 8, 2026.

Other comparisons