QTmobile

QTmobile is a mobile plans product operated by QTnet, Inc. (Kyushu Telecommunications Network). This 2026 review covers operator background, the current tier ladder and the practical decision points before subscribing. The service competes in the mobile plans category against regional and global alternatives, and the choice usually comes down to feature mix, regional availability and renewal economics rather than headline price alone.

Quick facts

• Operator: QTnet, Inc. (Kyushu Telecommunications Network)
• Headquarters: Fukuoka, Japan
• Public-market status: subsidiary of Kyushu Electric Power Co. (TYO: 9508)
• Founded: 2014 (QTmobile)
• Category: mobile plans
• Current tiers: docomo plan / au plan / Sタイプ (small data) / Mタイプ / Lタイプ
• Anchor price (2026): from JPY 1,100/month for 3GB; JPY 2,200/month for 10GB; family discounts available

What is QTmobile?

QTmobile is a telecommunications subscription delivered over the operator's owned or wholesale network footprint. Its product surface covers mobile or fixed-line connectivity in the operator's coverage area alongside monthly billing with no per-incident charges within plan limits, with the recurring subscription paid through direct billing on the operator's site or App Store / Google Play / partner-billing surfaces. Customers buy a tier matching their usage profile; the entry tier suits testing the product and higher tiers add features such as mobile app for account management and top-ups.

Why choose QTmobile

Operator and ecosystem context

QTmobile is run by QTnet, Inc. (Kyushu Telecommunications Network) out of Fukuoka, Japan, established 2014 (QTmobile). That matters because the mobile plans category is increasingly consolidated and the operator's ownership structure shapes how aggressively the product is supported and how stable the subscription terms are over multi-year renewals.

Plan structure and pricing tiers

The tier ladder splits across docomo plan for testing the service, au plan for everyday use, and Sタイプ (small data) for power users or households. Anchor pricing for 2026: from JPY 1,100/month for 3GB; JPY 2,200/month for 10GB; family discounts available. Consult Subger's true-price tracker for QTmobile for all-in renewal costs after taxes and FX conversion.

Network and connectivity features

Beyond the headline features, the 2025-2026 development focus for QTmobile is 2024-2025 continued positioning as Kyushu-regional MVNO with low-cost data plans on docomo and au networks; expanded BBIQ converged broadband bundles. That signals a credible roadmap for the year ahead and distinguishes the operator from competitors running their mobile plans product on autopilot.

QTmobile features that matter in 2026

Highlights of the current feature set:

• mobile or fixed-line connectivity in the operator's coverage area
• monthly billing with no per-incident charges within plan limits
• mobile app for account management and top-ups
• family or multi-line plans
• data roaming options
• customer-support hotline and in-app chat

Buyers should treat this list as a baseline for QTmobile in the mobile plans category — confirm specific feature availability for your region on the operator's site, since some features and tier names vary between countries.

QTmobile pricing in 2026

Reference pricing for QTmobile in 2026: from JPY 1,100/month for 3GB; JPY 2,200/month for 10GB; family discounts available. The tier ladder typically looks like:

Subger pairs the public price with the actual all-in cost (taxes, FX conversion, promotional first-period anchors that step up at renewal):

QTmobile apps and platform support

Surface availability for QTmobile can vary by region and tier — confirm current app availability and supported devices on the operator's site before subscribing.

Who QTmobile fits

QTmobile is most likely a good match for the following buyers:

• Customers who want predictable monthly connectivity from a regional or national operator — the core target audience for the product.
• The category-focused subscriber who specifically wants mobile or fixed-line connectivity in the operator's coverage area from a mobile plans operator rather than a generalist platform.
• The household subscriber evaluating the tier ladder (docomo plan / au plan / Sタイプ (small data)) and willing to pay up for monthly billing with no per-incident charges within plan limits.
• The cross-device user who needs apps across the surfaces listed above plus a credible upgrade path as new devices are added.
• The price-sensitive shopper who wants to track promotional anchors via Subger's true-price tracker and deals page before committing to annual billing.

Frequently asked questions

What is QTmobile and who runs it?

QTmobile is a mobile plans product operated by QTnet, Inc. (Kyushu Telecommunications Network) headquartered in Fukuoka, Japan, founded 2014 (QTmobile). It is sold via direct subscription on the operator's website and apps, with payments processed through the operator's billing surfaces.

How much does QTmobile cost in 2026?

Current tiers are docomo plan, au plan, Sタイプ (small data), Mタイプ, Lタイプ. Anchor reference pricing for 2026: from JPY 1,100/month for 3GB; JPY 2,200/month for 10GB; family discounts available. Confirm the live regional price on the operator's site before committing, since promotional cycles and FX conversion can shift the all-in renewal cost.

Is there a free tier or free trial for QTmobile?

There is no perpetual free tier listed publicly for the standard QTmobile subscription; the operator may run introductory trials periodically. Check the live signup page for current trial promotions.

Where is QTmobile available?

Availability follows the operator's licensing and service footprint anchored on Fukuoka, Japan. Confirm regional availability on the official site before subscribing, especially for products that have country-specific catalog or pricing rules.

What 2025-2026 developments set QTmobile apart right now?

The current 2025-2026 development focus is 2024-2025 continued positioning as Kyushu-regional MVNO with low-cost data plans on docomo and au networks; expanded BBIQ converged broadband bundles. Together with the headline features listed above, that gives buyers a concrete signal that the subscription is being actively developed rather than coasting on a legacy catalog.

Which devices and platforms does QTmobile support?

Coverage spans the surfaces shown in the platform table above. The current mobile, web and (where applicable) Smart TV apps are the recommended way to consume the service; older devices may be deprecated in successive releases as the operator focuses engineering effort on supported platforms.

How do I cancel QTmobile?

Cancel through the account or subscription settings on the surface where you bought the plan: the operator's website for direct subscriptions, the App Store or Google Play for in-app purchases, or the partner billing portal for bundled subscriptions. Subger's cancellation guide for QTmobile walks through each route step-by-step.

Does QTmobile offer a family or multi-user plan?

Family or multi-account structures depend on the tier. The Lタイプ tier commonly adds multi-profile or multi-device support; the entry docomo plan tier may restrict simultaneous usage. Confirm the per-tier seat limit on the live pricing page before committing to annual billing.

Is QTmobile worth it compared to mobile plans alternatives?

Value depends on three factors: the specific feature mix you'll use (see the features list above), the regional price after taxes (Subger's true-price tracker for QTmobile reconciles the headline price with the actual all-in renewal cost), and the credibility of the operator's 2025-2026 roadmap. Weigh these together rather than relying on headline price alone.

How can I track price changes for QTmobile?

Subger's renewal tracker for QTmobile records list-price changes plus promotional anchors over time. Pair it with the deals page for current discount codes and the promo codes page for stackable savings at signup.

Get started with QTmobile

Confirm the current regional price on the operator's site (from JPY 1,100/month for 3GB; JPY 2,200/month for 10GB; family discounts available), choose the tier that matches your usage (docomo plan, au plan are the most common starting points), and check Subger's deals page for QTmobile for promotional anchors before completing checkout. Track the subscription's true renewal cost with the true-price tracker once you're signed up.

Related Subger guides

• Cancel QTmobile guide
• Latest QTmobile deals
• QTmobile promo codes
• QTmobile true price and renewal tracker
• Browse the mobile plans category hub
• All services on Subger