Comparison

HeatNext vs SAIL250®MD

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

Head to head

HeatNext Heating App

★ 1.318 ratingsView app →

About

HeatNext

Features

Read full description

HeatNext is a friendly app that allows you to remotely manage your home heating system using your mobile device. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.

About

SAIL250®MD

Access comprehensive details about visiting ships, airshow performances, and festival locations. This app offers essential information for attendees of the Maryland airshow and related events.

Highlights

Ship visiting information
Airshow performance details
Flyover schedules
Festival site locations
Event information

Features

Read full description

The SAIL250 Maryland and Airshow Baltimore app provides detailed information on visiting ships, airshow and flyover performances, and festival sites.

Screenshots

HeatNext4 screens

SAIL250®MD4 screens

Verdict

The call

The clearest difference is in-app purchases: SAIL250®MD at none against HeatNext's 1. HeatNext's advantage is iOS requirement (15.0 vs 18.6). On price, update cadence, 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. HeatNext sells 1 in-app purchase, starting at $22.90 per year. SAIL250®MD asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level

HeatNext versus SAIL250®MD: the parameters behind the verdict, then further details
Parameter	HeatNext	SAIL250®MD
Price	Free	Free
Rating	—	1.3 (18 ratings) — better
Positive reviews	—	0.0% of reviews
Number of ratings	—	18 — better
Update frequency	Every 2 months	Every 2 months
Ads	No	No
In-app purchases	Yes	No — better
Monetization	—	Free
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0 — better	18.6
Further details — not scored
Size	44 MB	25 MB
Age rating	4+	4+
Developer	NOMNIO d.o.o.	Historic Ships In Baltimore, Inc.

In-app purchases

1 purchases

HeatNext

Subscriptions1

Plus Package$22.901 Year

None

SAIL250®MD

No in-app purchases

Questions

Is HeatNext free?

HeatNext is free to download, with in-app purchases available.

Is SAIL250®MD free?

SAIL250®MD is free to download, with no in-app purchases.

Do HeatNext or SAIL250®MD have ads?

Neither HeatNext nor SAIL250®MD shows ads.

Which is updated more often, HeatNext or SAIL250®MD?

HeatNext ships an update every 2 months, and SAIL250®MD every 2 months. Most recently, HeatNext was updated on November 2, 2026 and SAIL250®MD on October 24, 2026.