Comparison

aSTRING Chaos vs ESC COP

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

Head to head
About

aSTRING Chaos

Features
Read full description

Some connections are one-on-one. Others tie a whole group together. aString is built around two kinds of connection โ€” Strings and Knots. A String is a conversation between two people. It can be anonymous, where you're just a name the system gave you, or open, where you show up as yourself. Either way, it's just you and one other person. A Knot is a space where a group comes together around something shared. Some are open to anyone, others you have to request to join. Some are anonymous, some aren't. Each Knot sets its own rules โ€” you just decide if it's somewhere you belong. Every person on aString is verified โ€” through a university or professional email. No guests, no throwaway accounts. Just real people from real institutions. One app. Two kinds of space. You choose how much of yourself to bring. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ESC COP

Features
Read full description

COP17 Ulaanbaatar โ€“ Exhibitor Service Centre (ESC) Portal Manage your COP17 exhibition experience from a single app. The ESC Portal is the official mobile platform for exhibitors participating in the Blue Zone at COP17 Ulaanbaatar. Submit and track service requests for catering, electricity, furniture rental, LED displays, branding, IT connectivity, interpreters, cleaning, and logistics โ€” all in one place. Key Features: โ€ข Submit service requests for all booth needs โ€ข Track order status and receive real-time updates โ€ข Upload artwork, floor plans, and reference documents โ€ข Receive notifications when your quotation is ready โ€ข Access important deadlines and event information โ€ข Contact the Exhibitor Service Centre directly Whether you need power for your booth, daily cleaning, a coffee break for guests, or freight handling for your exhibition materials, the ESC Portal makes it simple, fast, and transparent. Download now and stay in control of your COP17 exhibition experience.

Screenshots

aSTRING Chaos4 screens
ESC COP3 screens

Verdict

The call

The clearest difference is in-app purchases: ESC COP at none against aSTRING Chaos's 2. ESC COP also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.2). On price, update cadence 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. aSTRING Chaos sells 2 in-app purchases, starting at $0.99 per 7 days. ESC COP asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard3 real differences ยท 3 level
aSTRING Chaos versus ESC COP: the parameters behind the verdict, then further details
ParameteraSTRING ChaosESC COP
PriceFreeFree
Update frequencyWeeklyWeekly
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone
Requires iOS18.216.4 โ€” better
Further details โ€” not scored
Size45 MB52 MB
Age rating17+17+
DeveloperBilegdemberel SumiyabayarErxes Inc

In-app purchases

2 purchases

aSTRING Chaos

Subscriptions2
  • Astring+ Weekly$0.997 Days
  • Astring+ Monthly$1.991 Month
None

ESC COP

No in-app purchases

Questions

Is aSTRING Chaos free?
aSTRING Chaos is free to download, with in-app purchases available.
Is ESC COP free?
ESC COP is free to download, with no in-app purchases.
Do aSTRING Chaos or ESC COP have ads?
aSTRING Chaos shows ads; ESC COP does not.
Which is updated more often, aSTRING Chaos or ESC COP?
aSTRING Chaos ships an update weekly, and ESC COP weekly. Most recently, aSTRING Chaos was updated on October 30, 2026 and ESC COP on November 5, 2026.

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